GB2368211A - One-way communication system particularly for use in a vehicle - Google Patents

One-way communication system particularly for use in a vehicle Download PDF

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Publication number
GB2368211A
GB2368211A GB0025517A GB0025517A GB2368211A GB 2368211 A GB2368211 A GB 2368211A GB 0025517 A GB0025517 A GB 0025517A GB 0025517 A GB0025517 A GB 0025517A GB 2368211 A GB2368211 A GB 2368211A
Authority
GB
United Kingdom
Prior art keywords
amplifier
vehicle
communication system
microphone
seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0025517A
Other versions
GB0025517D0 (en
Inventor
Maurice Stanley Skipper
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB0025517A priority Critical patent/GB2368211A/en
Publication of GB0025517D0 publication Critical patent/GB0025517D0/en
Publication of GB2368211A publication Critical patent/GB2368211A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

A communication means comprises an amplifier unit 1, microphone(s) 8, speakers 10 and associated wiring 3-6. It is particularly adapted for use in a motor-vehicle allowing communication from front-seat to rear-seat occupants using pre-existing speakers such as those of an in-car entertainment system. Preferably circuitry 9 is provided to prevent interference with other local radio apparatus. Preferably volume control 7 is provided. Preferably the communication system uses a voltage already supplied in the electrical systems of the vehicle. One embodiment uses a signal 5 from a car radio, normally used to extend an aerial, to signal the communication system to switch off, though a manual switch may also be provided.

Description

IN-CAR VOICE AMPLIFIER This invention relates to an amplifier with microphone, volume control and associated wiring for use in motor vehicles to facilitate improved and safer communication from driver and front-seat passenger to rear-seat passengers, utilising the vehicles existing rear speakers.
Despite all the technological improvements to the modem motor vehicle a particular problem remains. The driver and front-seat passenger invariably have to turn their heads through 900 ion order to communicate with the rear-seat passengers.
To the front-seat passenger this is nothing more than an inconvenience, but to the driver it is a safety hazard as his/her attention is distracted. This is especially so for a parent trying to talk to children in the rear seats whilst maintaining safe control of the vehicle.
The reasons for this problem are; 1) Driver and passenger are forward facing.
2) High-backed seats with head restraints restrict the passage of sound waves.
3) Use of soft furnishings throughout the vehicle absorbs sound waves.
4) Road noise.
5) Airconditioning and heater noise.
6) Wind noise.
The invention is designed to overcome this problem. It can be fitted to all new vehicles, and retrofitted to most vehicles currently in use.
For an understanding of the invention reference is made to the accompanying drawings in which; Figure 1 shows in perspective, the amplifier with microphone and associated wiring.
Figure 2 shows in schematic, the building blocks of the invention. IN-CAR VOICE AMPLIFIER Referring to the drawings, the electronics are housed on one or more printed-circuit boards 11 within box 1. Power from the vehicles battery (positive) is supplied on lead 2 which also has fuse 3 provided. Return (negative or earth) is on lead 4. Microphone 8 has sufficient cable length to enable it to be discreetly attached to the rear-view mirror, sun visor or any other suitable position. Output to the vehicles existing rear speakers 10 is provided by cables 6. During installation volume can be preset at 7.
It is desirable to have the amplifier switched off when the vehicles radio is in use. For this purpose relay or electronic switch 9 is provided to be automatically operated when the radio is switched on. Most modem vehicle radios are provided with an additional wire to operate an electric aerial when the radio is switched on, connection into this wire by lead 5 will de-power the amplifier. If this facility is not available manual switching of the power supply on lead 2 will be provided.

Claims (7)

  1. CLAIMS IN-CAR VOICE AMPLIFIER 1 An amplifier with microphone, volume control and associated wiring designed for use in motor vehicles to facilitate improved and safer communication from driver and front-seat passenger to rear-seat passengers, utilising the vehicles existing rear speakers.
  2. 2 An amplifier as claimed in claim 1 wherein circuitry is provided to prevent interference to normal radio operation.
  3. 3 An amplifier as claimed in claim 1 capable of having one or more microphone inputs.
  4. 4 An amplifier as claimed in claim 1 constructed to operate on the working voltage of the vehicle for which it is intended, or any future change in vehicle voltage design.
  5. 5 An amplifier as claimed in claim 1 modified to enable vehicle manufacturers to supply the units built-in.
  6. 6 An amplifier as claimed in claim 1 capable of having it's supply voltage swithed on/off automatically or by manual switching.
  7. 7 An amplifier as described herein with reference to Figures 1 and 2 of the accompanying drawings.
GB0025517A 2000-10-17 2000-10-17 One-way communication system particularly for use in a vehicle Withdrawn GB2368211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0025517A GB2368211A (en) 2000-10-17 2000-10-17 One-way communication system particularly for use in a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0025517A GB2368211A (en) 2000-10-17 2000-10-17 One-way communication system particularly for use in a vehicle

Publications (2)

Publication Number Publication Date
GB0025517D0 GB0025517D0 (en) 2000-11-29
GB2368211A true GB2368211A (en) 2002-04-24

Family

ID=9901523

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0025517A Withdrawn GB2368211A (en) 2000-10-17 2000-10-17 One-way communication system particularly for use in a vehicle

Country Status (1)

Country Link
GB (1) GB2368211A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304257A2 (en) * 1987-08-19 1989-02-22 McGregor, Thomas Voice enhancer system
US5185803A (en) * 1991-12-23 1993-02-09 Ford Motor Company Communication system for passenger vehicle
EP0837619A2 (en) * 1996-10-18 1998-04-22 Childcare Products Ltd Sound transmission device and apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304257A2 (en) * 1987-08-19 1989-02-22 McGregor, Thomas Voice enhancer system
US5185803A (en) * 1991-12-23 1993-02-09 Ford Motor Company Communication system for passenger vehicle
EP0837619A2 (en) * 1996-10-18 1998-04-22 Childcare Products Ltd Sound transmission device and apparatus

Also Published As

Publication number Publication date
GB0025517D0 (en) 2000-11-29

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)