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1. Explain why the product/service requested is the only product/service that can satisfy your
requirements, and explain why alternatives are unacceptable. Be specific with regard to
specifications, features, characteristics, requirements, capabilities, and compatibility. Describe
what steps have been undertaken to make this determination.
We have sampled a similar product from other manufacturers but none offer the capability to
wirelessly communicate whether mounted or dismounted from the motorcycle without being
tethered to it by a coiled cable. This Motor Kit wirelessly provides a handlebar remote Portable
Radio Push -to -Talk control switch, and also a second Push -to -Talk control switch for PA (Public
Address). This allows the Motor officer tokeep both hands safely on the handlebar while
communicating on the police radio or PA. In addition, it frees the Officer from a connection to his
Motor and provides a "Tether- Free" connection to his belt -mounted Portable Radio even if the
rider becomes separated from his motorcycle.
2. Explain why this services provider, supplier or manufacturer is the only practicably available
source from which to obtain this product or service, and describe the efforts that were made to
verify and confirm whether, or not, this is so. (Obtain and include a letter from the manufacturer
confirming claims made by distributors or exclusive distributorships regarding the product or
service, if that is cited as a reason for this Sole Source.)
We have evaluated all the competition out there and no other headset matches all of the
functions of this manufacturer. This is the only headset that offers a wireless connection for the
officer AND Bluetooth connectivity, AND pairing with the `trunk -mounted" radio in the
motorcycle. All other competitors will lack one of these features. The problem is that the
cabled systems either require the officer to stay connected or each time we disconnect during
an escort or traffic stop the other end of the cable dangles onto the VERY hot motorcycle engine
and damages it. The officer is then required to reconnect while dangerously standing in traffic.
3. Will this product obligate us to a particular vendor for future purchases (either in terms of
maintenance that only this vendor will be able to perform and/or if we purchase this item, will we
need more "like" items in the future to match this one)?
Yes, no other vendor is currently producing a comparable product. Replacement parts will need
to be purchased from this vendor should the need arise but our radio shop will be able to perform
the maintenance. The only time we will need more "like" items in the future to match this one
will be in cases of theft or crashes.
4. Explain why the price for this product or service is considered to be fair and reasonable.
The price extended to the City of Miami is competitive with other manufacturers despite it being
a superior product and having all the required features which are available only through this
vendor by patent.
5, Describe the negotiation efforts, if any, that have been made with the supplier to obtain the best
possible price.
The vendor has issued a 7% discount to the City after numerous negotiations.
6. Explain the consequences(s) to the City, including the dollar estimate of the financial impact, if
this Sole Source is not approved.
The consequence for not purchasing this product would be the continuing current situation which
requires motor officers to operate a police motorcycle with one hand in order to utilize the police
radio. This is no longer a necessary risk for police motorcycle operations since the technology
exists for wireless push to talk radio transmissions.
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HOME WIRELESS FREEDOM SERIES WIRELESS SYSTEMS WIRED SYSTEMS HELMETS & HELMET KITS VISOR KITS SUPPORT BLOC CONTACT
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WIRELESS FREEDOM SERIES OVE R\/ l fin/
DESCRIPTION DETAILS SYSTEM FEATURES
• Earphone Impedance: 25 ohms (12.5 ohms in parallel)
• Earphone Frequency Response: 300hz - 3.7khz
Bluetooth Operating Parameters:
• 2.1 + EDR Compliant
o Operating Frequency 2.4Ghz ISMBand
• 128 Bit Encryption
o Supported Profiles: SPP, DUN, OBEX OPP, HFP (v.1.5) A2DP,
AVRCP, DID and HID
o CE, IC and FCC Qualified
o Class 2 Operation — Range up to 30 Meters
• Transmit Power 7dBm receiver
• Sensitivity-87dBm
• Extended Temperature Range from -30C to +85C
• Battery Life: 16 hours minimum (Radio Mode)
• Boom Microphone Length: 6.5 41- .5 inches
• Microphone Element: Condenser Electret, nonamplified
• Environmental: Waterproof
• Microphone Frequency Response: 1Khz-3.5Khz
• Microphone Pattern: Directional Cardioid, Noisecanceling
• Microphone Output: 100mV (Li)1 kHz
• PATENTS:
• 7,2.03,525
O 6,311,052
o 7,062,301
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6/15/2016 Patent US5790947 - Radio and public address interface kit- Google Patents
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Patents
Radio and public address interface kit
US 5790947 A
ABSTRACT
Find prior art
A remote push -to -talk (PTT) button for use on motorcycles with two-way radios
and public address systems. The remote PTT enables the rider to use both the
radio and public address systems from the helmet -mounted microphone while
driving the motorcycle.
IMAGES (6)
DESCRIPTION
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates in general to a radio, helmet and public address (PA)
interface kit. More particularly, the invention relates to a communications
accessory kit that allows a motorcycle rider to communicate, using a microphone
mounted in a helmet, over a belt -mounted two-way radio and a public address
system.
2. Description of the Related Art
Two-way radios have been used for communication purposes for many years.
The use of two-way radios for mobile communications has become prevalent
commercially and in police and military environments. Two-way radios for police
motorcycles are especially prevalent, since motorcycle police are usually alone
and rely on the radio for their sole contact point with other police.
The two-way radio that motorcycle police use is most commonly located on the
belt of the policeman. Motorcycle policemen are required by law to wear helmets,
forcing the motorcycle police to have earphones and a microphone installed in
the helmet to enable radio use while driving the motorcycle. However, the rider
has difficulty using the radio while driving, since both hands are needed on the
handlebars to drive, control speed, and brake the motorcycle.
It can be seen then that there is a need for a way for the policeman to be able to
safely and easily use the two-way radio while driving the motorcycle, It can also
be seen that there is a need for the policeman to be able to continue using the
two-way radio at a distance greater than a few feet from the motorcycle.
SUMMARY OF THE INVENTION
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Publication number US5790947 A
Publication type Grant
Application number US 08/678,633
Publication date Aug 4, 1998
Filing date Jul 10, 1996
Priority date Jul 10, 1996
Fee status Paid
Inventors Michael D. Dleringer
Original Assignee Dleringer; Michael D.
Export Citation BiBTeX, EndNote, RefMan
Patent Citations (6), Referenced by (25), Classifications (6),
Legal Events (4)
External Links: USPTO, USPTO Assignment, Espacenet
CLAIMS (30)
What is claimed is:
1. A motorcycle communications system, comprising:
a motorcycle having a public address (PA) system mounted thereon;
a two-way radio carried by the motorcycle's rider;
a helmet wom by the motorcycle's riderhaving one or more earphones and a
microphone attached thereto; and
an electrical interconnect assembly for electrically interconnecting the
earphones and the microphone in the helmet with the two-way radio and the
public address system, wherein the electrical interconnect assembly
includes one or more switches for electrically connecting the microphone In
the helmet to either the two-way radio or the public address system.
2. The motorcycle communications system of claim 1, wherein the
earphones comprise surround -sound earphones.
3. The motorcycle communications system of claim 1, wherein the
switches comprise a first push -to -talk switch for connecting the
microphone to the two-way radio.
4. The motorcycle communications system of claim 3, wherein the
switches comprise a second push -to -talk switch for connecting the
microphone to the two-way radio and a third push -to -talk switch for
connecting the microphone to the public address system,
5, The motorcycle communications system of claim 4, wherein the first
switch is carried by the motorcycle's rider, and the second and third
push -to -talk switches are mounted on the motorcycle,
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To overcome the limitations in the prior art described above, and to overcome
other limitations that will become apparent upon reading and understanding the
present specification, the present invention discloses a motorcycle
communications system for enabling a rider to use a two-way radio and a public
address system with a microphone mounted in a helmet. The present invention is
comprehensive, fully integrated with current motorcycle communications
systems designs, easy to use, and extendable.
The present invention solves the above -described problems by providing a
remote push -to -talk (PTT) switch that remains with the rider as the rider moves
away from the motorcycle, and two remote PTT switches mounted on the
handlebars of the motorcycle. Both sets of switches allow the rider to use the
helmet -mounted microphone with both the radio and public address (PA) system.
These and various other advantages and features of novelty which characterize
the invention are pointed out with particularity in the claims annexed hereto and
form a part hereof. However, for a better understanding of the Invention, its
advantages, and the objects obtained by its use, reference should be made to
the drawings which form a further part hereof, and to accompanying descriptive
matter, in which there is illustrated and described specific examples of an
apparatus in accordance with the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
Referring now to the drawings in which like reference numbers represent
corresponding parts throughout:
FIG. 1 is a schematic diagram of the communications system of the present
invention;
FIG. 2 is a diagram further illustrating the helmet harness of the present
invention;
FIG. 3 is a schematic diagram further illustrating the helmet hamess of the
present invention;
FIG. 4 is a diagram further illustrating the microphone assembly of the present
invention;
FIG. 5 is a schematic diagram further illustrating the microphone assembly of the
present invention;
FIG. 6 Is a diagram further illustrating the breakaway cable assembly of the
present invention;
FIG. 7 is a schematic diagram further illustrating the breakaway cable assembly
of the present invention;
FIG. 8 Is a diagram further illustrating the radio adapter assembly of the present
invention;
FIG. 9 is a schematic diagram further illustrating the radio adapter assembly of
the present invention;
FIG. 10 is a diagram further illustrating a portion of the motorcycle hamess
assembly of the present invention;
FIG. 11 is a diagram further illustrating the switch assembly of the present
invention; and
FIG. 12 is a diagram further illustrating the public address interface assembly of
the present invention.
DETAILED DESCRIPTION OF THE INVENTION
In the following description of the preferred embodiment, reference is made to the
accompanying drawings which form a part hereof, and in which is shown by way
of illustration the specific embodiment in which the invention may be practiced. It
6, The motorcycle communications system of claim 5, wherein the first
push -to -talk switch connects the microphone to the two-way radio when
the electrical interconnect assembly is both electrically connected and
disconnected to the public address system.
7. The motorcycle communications system of claim 1, wherein the
electrical interconnect assembly comprises:
a first assembly mounted on a motorcycle having a first push -to -
talk switch for operating the two-way radio,
is second assembly removably coupled and electrically connected
to the helmet, the two-way radio, and the first assembly, the
second assembly having a second push -to -talk switch located
proximate to and carried by the motorcycle rider for operating the
two-way radio,
wherein the first push -to -talk switch works to operate the two-way
radio when the second assembly is electrically connected to the
first assembly, and the second push -to -talk switch works to
operate the two-way radio when the second assembly Is both
electrically connected and disconnected to the first assembly.
8. The motorcycle communications system of claim 7, wherein the first
push -to -talk switch is electrically parallel to the second push -to -talk
switch.
9. The motorcycle communications system of claim 7, wherein the first
assembly further comprises a third push -to -talk switch for operating the
public address system,
10. The motorcycle communications system of claim 7, wherein the
first assembly is coupled to a power connector on the motorcycle for
supplying electrical power to the two-way radio when connected
therewith.
11, The motorcycle communications system of claim 7, further
comprising a breakaway cable assembly coupled between the helmet
and the second assembly.
12. The motorcycle communications system of claim 1, wherein the
electrical interconnect assembly includes a fixed helmet jack for
connecting to the helmet.
13. The motorcycle communications system of claim 12, wherein the
fixed helmet jack is molded into the electrical interconnect assembly.
14. A communications interconnect assembly, comprising:
an electrical interconnect assembly comprising one or more electrical cables
and connectors,
the electrical interconnect assembly being removably coupled and
electrically connected via the electrical cables and connectors to one or
more earphones and a microphone, a two-way radio, and a public address
(PA) system, wherein the electrical interconnect assembly includes one or
more switches for selectively connecting the microphone to the two-way
radio and the public address system.
15, The communications interconnect assembly of claim 14, wherein
the earphones comprise surround -sound earphones.
16. The communications interconnect assembly of claim 14, wherein
the switches comprise a first push -to -talk switch for connecting the
microphone to the two-way radio.
17. The communications interconnect assembly of claim 16, wherein
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is to be understood that other embodiments may be utilized as structural
changes may be made without departing from the scope of the present invention.
System Components
The present invention is a motorcycle communications system that allows a
helmet -mounted microphone to be used with both a two-way radio and a public
address system. An electrical interconnect assembly provides an electrical
interconnect between the helmet, two-way radio, and the public address system,
wherein the electrical Interconnect assembly includes one or more switches for
electrically connecting the microphone In the helmet to both the two-way radio
and the public address system.
FIG. 1 is a schematic diagram of the communications system 10 of the present
invention, which comprises a helmet harness 12, microphone assembly 14,
breakaway cable assembly 16, radio 18, radio adapter assembly 20, motorcycle
harness assembly 22, public address (PA) assembly 24, and public address (PA)
system 26.
In the helmet harness 12, two earphones or speakers 28 and the microphone
assembly 14 are connected to a helmet connector 30. Typically, the earphones
28 and microphone assembly 14 are attached or otherwise an integral part of the
motorcycle helmet, but they can also be part of a telephone headset or other
portable device used for two-way communication. Preferably, the earphones 28
provide monaural, stereo, and/or multi -channel surround sound. The helmet
connector 30 is typically mounted external to a motorcycle helmet, but can also
be part of a cable that protrudes from the motorcycle helmet. Further, if the
earphones 28 and microphone assembly 14 are part of a telephone headset, the
helmet connector 30 may not be attached to any other structure, but may be a
simple plug assembly.
The helmet connector 30 is coupled to the external connector 32 of the
breakaway cable assembly 16, which also includes a breakaway connector 34.
Either external connector 32, breakaway connector 34, or both, are designed to
disconnect under a given force. For example, if enough axial force is placed on
the connection between the external connector 32 and helmet connector 30, the
connection will be broken.
The breakaway connector 34 is connected to a jack in a radio adapter 36 of the
radio adapter assembly 20. The radio adapter 36 is also coupled to the radio 18.
Preferably, the jack In the radio adapter 36 is molded into the adapter 36, and
thus comprises a fixed jack. The radio adapter assembly 20 also includes a jack
and switch assembly 38 for connecting to the motorcycle harness assembly 22.
In the preferred embodiment, the jack and switch assembly 38 contains a push -
to -talk (PTT) switch 40 that activates the microphone input to the radio. The radio
adapter assembly 20 is preferably located proximate to the motorcycle's rider,
such that the rider can selectively engage and disengage the functions of the
microphone assembly 14 using the switch 40. In alternative embodiments, the
push -to -talk (PTT) switch 40 could activate the microphone input to either the
radio 16 or the public address system 26, or there could be multiple push -to -talk
(PTT) switches 40 that activate the microphone input to the radio 16 and the
public address system 26. Those skilled in the art will recognize that one switch
40 may perform multiple functions or multiple switches 40 may be used to
perform multiple functions.
The jack and switch assembly 38 of the radio adapter assembly 20 is coupled to
the motorcycle harness assembly 22 via a rider harness connector 42 when the
motorcycle's rider is proximate the motorcycle. The motorcycle harness
assembly 22 is comprised of a rider harness connector 42 and a handlebar
switch assembly 46, both of which are coupled to an interface connector 44. The
handlebar switch assembly 46, like the jack and switch assembly 38, contains
one or more push -to -talk (PTT) switches 48 that control the talk functions of the
radio 18 and the public address (PA) system 26. In the preferred embodiment, the
handlebar switch assembly 46 includes two push -to -talk (PTT) switches 48.
the switches comprise a second push -to -talk switch for connecting the
microphone to the two-way radio and a third push -to -talk switch for
connecting the microphone to the public address system.
18. The communications interconnect assembly of claim 16, wherein
the first push -to -talk switch connects the microphone to the two-way
radio when the electrical interconnect assembly is both electrically
connected and disconnected to the public address system,
19. The communications Interconnect assembly of claim 14, wherein
the electrical interconnect assembly comprises:
a first assembly having a first push -to -talk switch for operating the
two-way radio,
a second assembly removably coupled and electrically connected
to the speakers, the microphone, the two-way radio, and the first
assembly, the second assembly having a second push -to -talk
switch for operating the two-way radio,
wherein the first push -to -talk switch works to operate the two-way
radio when the second assembly is electrically connected to the
first assembly, and the second push -to -talk switch works to
operate the two-way radio when the second assembly is both
electrically connected and disconnected to the first assembly.
20. The communications interconnect assembly of claim 19, wherein
the first push -to -talk switch is electrically parallel to the second push -to -
talk switch.
21. The communications Interconnect assembly of claim 19, wherein
the first assembly further comprises a third push -to -talk switch for
operating the public address system.
22. The communications interconnect assembly of claim 19, wherein
the first assembly is coupled to a power connector for supplying
electrical power to the two-way radio when connected therewith,
23. The communications interconnect assembly of claim 19, further
comprising a breakaway cable assembly coupled between the
earphones and the microphone and the second assembly.
24. A radio assembly, comprising:
a public address (PA) system;
a two-way radio;
a microphone; and
an electrical Interconnect assembly for electrically interconnecting the
microphone, the two-way radio, and the public address system, wherein the
electrical interconnect assembly includes at least one push -to -talk switch,
wherein the push -to -talk switch selectively connects the microphone to the
two-way radio and the public address system and wherein a first push -to -
talk switch connects the microphone to the two-way radio when the
electrical interconnect assembly is both electrically connected and
disconnected to the public address system.
25. The radio assembly of claim 24, wherein the push -to -talk switches
comprise a first push -to -talk switch and a second push -to -talk switch for
connecting the microphone to the two-way radio and a third push -to -talk
switch for connecting the microphone to the public address system.
26, The radio assembly of claim 24, wherein the electrical interconnect
assembly comprises;
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When a first one of PTT switches 48 is depressed, the microphone input to the
radio 18 is activated, allowing the rider's voice to be transmitted over the radio 18
(or any other device connected to the radio adapter assembly 20). When a
second one of the PTT switches 48 is depressed, the microphone input to the
public address system 26 is activated, allowing the rider's voice to be
transmitted over the public address system 26 (or any other device connected to
the PA interface assembly 24).
The interface connector 44 of the motorcycle hamess assembly 22 is coupled to
a public address interface assembly 24 via a connector 50. The connector 50 is,
in tum, coupled to a pre-amplifler 52, which itself is coupled to the public address
system 26 via an interface connector 54. A hom, power and control interface
connector 56 is also coupled to the interface connector 54,
Helmet Harness
FIG. 2 is a diagram further illustrating the helmet hamess 12 of the present
invention. The helmet hamess 12 includes two earphones 28. The sensitivity of
each earphone 28 allows for a clear and audible transmission at motorcycle
speeds in excess of 70 MPH. Each earphone 28 has a diameter of 1.75 inches
and total thickness of 5/16 inches to allow for installation between the shell and
liner of the helmet. The dimensions allow for the above -mentioned installation
which more readily allows the SNELL safety rating on the helmet to be
maintained. The helmet hamess 12 has a helmet connector 30 to electrically
interconnect it to the other components of the communications system 10. The
helmet connector 30 provides for electrical interconnection of helmet cabling 58,
60, and 62. The helmet cabling 58, 60, and 62 is designed for installation
between the shell and liner of the helmet with an outside diameter (OD) of no
greater than 0.085 inches to allow for easy installation. The cable 62 that is the
lead for the microphone assembly 14 is of sufficient length to allow for choice of either left or right side mounting of the
microphone assembly 14 in the helmet. The cable 62 has a microphone connector 64 at one end. The microphone connector
64 is keyed to prevent improper mating with the microphone assembly 14.
a first assembly having a first push -to -talk switch for operating the
two-way radio,
a second assembly removably coupled and electrically connected
to the microphone, the two-way radio, and the first assembly, the
second assembly having a second push -to -talk switch for operating
the two-way radio,
wherein the first push -to -talk switch works to operate the two-way
radio when the second assembly is electrically connected to the
first assembly, and the second push -to -talk switch works to
operate the two-way radio when the second assembly is both
electrically connected and disconnected to the first assembly.
27. The radio assembly of claim 26, wherein the first push -to -talk switch
is electrically parallel to the second push -to -talk switch,
28. The radio assembly of claim 27, wherein the first assembly is
coupled to a power connector for supplying electrical power to the two-
way radio when connected therewith.
29. The radio assembly of claim 27, further comprising a breakaway
cable assembly coupled between the microphone and the second
assembly.
30. The radio assembly of claim 26, wherein the first assembly further
comprises a third push -to -talk switch for operating the public address
system.
FIG. 3 is a schematic diagram further illustrating the helmet harness 12 of the present Invention. The helmet connector 30
has four pins, wherein pin 1 is connected to the minus part of the microphone connector 64, pin 2 is connected to one
terminal of one of the earphones 28, pin 3 Is connected to the positive terminal of the microphone connector 64, and pin 4 is
connected to one terminal of the other earphone 28. A wire then connects the two unoccupied terminals on the earphones
28.
Microphone Assembly
FIG. 4 is a diagram further illustrating the microphone assembly 14 of the present invention. The microphone assembly 14 is
a black flexible boom type that is adjustable for length outside the helmet. The recommended nominal adjusted length is 6.5
inches, but can be adjusted for longer or shorter outside mounting lengths. The boom diameter is 4 mm and the head of the
microphone 12 has a maximum outside diameter of 0,40 Inches. The microphone assembly 14 can be installed on either the
left or right side of the helmet. The microphone 66 within the assembly 14 is a noise -cancelling electret type that is designed
to provide the rider with clear speech transmission at highway speeds in excess of 70 MPH when used with a windscreen
68. The windscreen 68 diameter is 1.125 inches and is secured to the head of the microphone 66. A connector 70 for the
microphone assembly 14 Is keyed for polarity to guarantee correct mating to the microphone connector 64 of the helmet
harness 12, The microphone assembly 14 allows for a low profile, inside -the -helmet installation, under the cheekguard
faceplate mounting screw of the helmet. This type of installation keeps the rider's vision from being impaired and more
readily allows the SNELL safety rating on the helmet to be kept intact.
FIG. 5 is a schematic diagram further illustrating the microphone assembly 14 of the present invention. The microphone 66
is connected to the positive terminal of the microphone connector 70. The negative terminal of the microphone 66 is
connected to the shield of the assembly 14, which is then connected to the negative terminal of the connector 70.
Breakaway Cable Assembly
FIG. 6 is a diagram further illustrating the breakaway cable assembly 16 of the present invention. The breakaway cable
assembly 16 includes an external connector 32 and a breakaway connector 34. The breakaway cable assembly 16 provides
a non -locking, "quick disconnect" electrical link between the helmet and the radio adapter 36. The external connector 32 is
preferably female and the breakaway connector 34 is preferably male, and both preferably comply with military specification
M9177. The overall length is 36+1-1 inches. The cable element of the breakaway cable assembly 16 is of either a
polyethylene or a polyurethane outer jacket with an outside diameter of no greater than 0.130 inches. The cable element
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diameter and construction is significant in this application, since its narrow size and strength keep it from catching on the
rider's uniform or foreign objects. This increased manageability allows the rider to more easily keep the breakaway cable
assembly 16 close to his uniform and significantly decreases the chances of accidental disconnection and/or damage. The
cable element is also shielded and strain relieved, providing increased integrity.
FIG. 7 is a schematic diagram further illustrating the breakaway cable assembly 16 of the present invention. The external
connector 32 and breakaway connector 34 each have four pins associated therewith that are connected straight through. In
addition, pin 1 of extemal connector 32 is connected to the shield for the breakaway cable assembly 16.
Radio Adapter Assembly
FIG. 8 is a diagram further illustrating the radio adapter assembly 20 of the present invention. The radio adapter assembly 20
is comprised of the radio adapter 36 and the jack and switch assembly 38. The radio adapter assembly 20 is designed to
provide both transmit and receive signals to the helmet without interfering with the radio holster. The radio adapter assembly
20 mounts to the radio 18 by means of a thumbscrew 72, allowing the rider to remove the radio adapter 36 from the radio 18
by hand without the use of any tools. The connection to the breakaway cable assembly 16 is made directly by means of a
firmly affixed, non -locking female jack 74, meeting military specification M9177, and without the use of a belt box. The jack
74 protrudes less than two Inches above the body of the radio 18. The radio adapter assembly 20 is additionally secured to
the radio 18 with an accessory adapter collar 76 and SMA antenna nut 78. This design configuration allows for a simple,
mechanically reliable, single-handed type mating to the breakaway cable assembly 16. A push -to -talk (PTT) switch 40 is
shown integrated with jack and switch assembly 38, but is not required to be integrated as such. The radio adapter
assembly 20 allows Push -To -Talk (PTT) signals from the microphone assembly 14 and radio 18 to be passed to and from
the motorcycle hamess assembly 22. The radio adapter assembly 20 provides a no -delay transmit and receive feature when
mounted to the radio 18, The length of the radio adapter assembly 20 is sufficient to allow the jack and switch assembly 38
to clear a large radio 18 battery by 1 inch +/-1 inch. The interface connector 80 portion of the jack and switch assembly 38 is
a female connector, in accordance with military specification M8805, and incorporates one or more switches 40 mounted in
the backshell for use by the rider when disconnected from the motorcycle harness assembly 22.
FIG. 9 is a schematic diagram further illustrating the radio adapter assembly 20 of the present invention. In the radio adapter
assembly 20, pin 1 of the jack and switch assembly 38 is connected to pin 3 via a capacitor 82. The capacitor 82 is typically
a 100 picofarad (pF) capacitor. Pin 1 is also connected to one terminal of the switch 40 and an RF choke 84. The RF choke
84 is connected to radio bus terminal 86. Pin 3 is connected to the other terminal of the switch 40. Pin 3 is also connected
to pin 1 of the radio adapter 36. Pin 4 of the jack and switch assembly 38 is connected to pin 3 of the radio adapter 36.
Radio bus terminal 86 is connected to choke 88, choke 90, and choke 92. Choke 88 is connected to pin 3 of the radio
adapter 36. Choke 90 is connected to pin 2 of the radio adapter 36. Choke 92 is connected to pin 4 of the radio adapter 36.
Pin 1 of radio adapter 36 is connected to the shield of the radio adapter assembly 20. Pin 1 is also connected to pin 94 on
the board assembly 96.
Motorcycle Harness Assembly
FIG. 10 is a diagram further illustrating a portion of the motorcycle harness assembly 22 of the present invention. More
specifically, FIG. 10 further illustrates the rider interface cable portion of the motorcycle harness assembly 22, including the
rider harness connector 42 and the male connectors to the interface connector 44 (not shown). In the preferred embodiment,
the outer jacket construction of the cable elements of the motorcycle harness assembly 22 is either polyurethane or
polyethylene and has an outer diameter of no greater than 0.130 inches in order to provide easy routing and installation along
the frame of the motorcycle. The length of the motorcycle hamess assembly 22 Is sufficient to allow for installation of the
public address system 26 in the left rear saddlebag of the motorcycle.
FIG. 11 is a diagram further illustrating the switch assembly 46 of the present invention. The handlebar switch assembly 46,
which mounts on the handlebars of the motorcycle, includes one or more handlebar -mounted Push -To -Talk (PTT) switches
48 for remote operation of the radio 18 and public address system 26. The switches 48 are attached to an aluminum bracket
98 that mounts under the left handlebar grip of the motorcycle for easy access and use with a gloved hand. The switches
48, which meet military specification MS25089, include a distinct detent when pressed and preferably are waterproof. In the
preferred embodiment, the switch 48 for the radio 18 (on top) is black in color and the switch 48 for the public address
system 26 (on bottom) is red in color.
Public Address Interface Assembly
FIG. 12 is a diagram further illustrating the public address Interface assembly 24 of the present invention. The public address
interface assembly 24 contains an amplifier connector 50 that couples to the interface connector 44 of the motorcycle
harness assembly 22, a preamplifier 52, a public address interface connector 54 that couples to the public address system
26, and a horn, power and control interface connector 56. The pre -amplifier 52 provides a volume control adjustment 100 for
the public address system 26 when the rider is speaking through the microphone assembly 14.
Conclusion
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The foregoing description of the preferred embodiment of the invention has been presented for the purposes of illustration
and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications
and variations are possible in light of the above teaching. It is intended that the scope of the invention be limited not with
this detailed description, but rather by the claims appended hereto.
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International Telephone And Telegraph
Corp.
Kramb Keneth D
Joseph Drefko
Lazzeroni John J
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Federal Signal Corporation
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Applicant
Davies Industrial
Communications Limited
Gallet Sa
Davies Industrial
Communications Limited
Dieringer Michael D
Dieringer Michael D
Motorola, Inc.
Rascal Acoustics Limited
Plantronics, Inc.
Pinnacle Peak Holding
Corporation
Pinnacle Peak Holding
Corporation
Erwin Duane A.
Gallet S.A. Of Chatillon Sur
Chalaronne
John Davies
John Davies
Gunter David Charles
Motorola, Inc.
...........................
John Davies
Dleringer Michael D
Pinnacle Peak Holding
Corporation (Dba Setcom
Corp.)
David Fettig
Pinnacle Peak Holding
Corporation (d.b.a. Setcom
Corp)
Dynamic Research, Inc.
Davies Industrial
Communications Limited
Davies Industrial
Communications Limited
Thales Defence Limited
Sound communication system
Medical service equipment for motorcycles
Two way radio safety helmet
Motorcycle helmet microphone mount and plug mount
Protective helmet containing an integral transceiver
Programmable emergency signalling system for a
vehicle
Title
Radio system with cordless remote PTT module
Universal communication device
Radio system with universal communication interface
Wireless control of operating characteristics of microphone -
including
p g arrangement for users of power sports equipment
Wireless control of helmet -mounted communications
equipment
Four pole stereo headset with push to talk capability in a
duplex radio
Modular communications devices
Method and device for sharing signals from a portable media
player
Wireless portable radio vehicle communication system
Wireless portable radio vehicle communication system
Remote Broadcasting System
Universal communication device
Radio system with cordless remote ptt module
Radio system with universal communication interface
Modular communications devices
Four pole stereo headset with push to talk capability in a
duplex radio
Radio system with universal communication interface
Wireless control of helmet -mounted communications
equipment
Radio and public address accessory system with wireless
interface
Wireless portable radio vehicle communication system
Radio and Public Address Accessory System with Wireless
Interface
Devices, systems, and methods for testing crash voidance
technologies
Radio system with cordless remote ptt module
Radio system with universal communication interface
Modular communication devices
CLASSIFICATIONS
https://www.google.com/patents/US5790947
6/7
6/15/2016
U.S. Classification
International Classification
Cooperative Classification
European Classification
LEGAL EVENTS
Date Code
Feb 4, 2002 FPAY
Feb 26, 2002 REMI
Jan 13, 2006 FPAY
Nov 17, 2009
FPAY
Patent US5790947 - Radio and public address interface kit - Google Patents
455/345, 455/351
H04B1/38
H04B1/3822, H04B2001/3894
H04B1/38M
Event
Fee payment .....
Maintenance fee reminder mailed
Fee payment
Fee payment
Description_
Year of fee payment: 4
Year of fee payment: 8
Year of fee payment: 12
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Data provided by IFI CLAIMS Patent Services
https://www.google.com/patents/US5790947 7/7
Communicains
2310 205th Street, Torrance, CA 90501
Telephone: 310-212-5432 — Fax: 310-212-5492
Toll -Free 800-584-4119
RE: Sole Source Manufacturer
PVP Communications, Inc is the sole manufacturer of PVP helmet communications. These helmet
communication systems are uniquely designed to address the specific communications and safety needs
dictated by the use of motorcycles in the field of law enforcement.
PVP Communications' Autoswitching System is designed and manufactured exclusively by PVP
Communications and is protected by US Patent No. 5,790,947.
PVP Communications also understands the importance of product reliability and support with our
customers and provides not only a one year limited warranty, but telephone technical support and modular
designs that provide ease of maintenance for customers in the field.
We look forward to being of service to you in the future!
Sincerely,
Jay Calzada
General Manager
P
CO UNIC,ATIO S
wireless innovations for law enforcement
2310 W 205th Street, Torrance CA 90501
June 28, 2016
Charles Johnson
City of Miami -Procurement Dept
1701 N.W. 30'Ave
Miami, FL 33142
Re: PVP Communications/Blueline Communications
Dear Charles,
This letter is to clarify and confirm the relationship between PVP Communications and Blueline
Communications (aka PVP East). Both firms are associated, whereas Blueline is the assigned
sole distributor of PVP products for the entire State of Florida and PVP Communications is the
main corporate office located in California. In an effort to better serve the State of Florida we
have established a distributor, a branch of PVP, that can support the product locally both with
sales and service. The products distributed are the same patented products the city is seeking.
I trust that this letter has clarified this matter, however please feel free to contact me should
you wish to discuss it further.
Sincerely,
Jay Calzada
General Manager