Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Patent
1997-07-01
2000-10-24
Voeltz, Emanuel Todd
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
4552261, H04B 100
Patent
active
061379921
ABSTRACT:
A radio frequency audio distortion measurement system for a motor vehicle radio. The system includes a generator that generates test RF signals and transmits the signals to the motor vehicle radio through a wireless communication link. The system includes a controller coupled to the generator that controls the transmission of the RF signals to the radio. The system also includes a distortion analyzer coupled to the RF receiver and the controller that senses and analyzes the audio distortion caused by motor vehicle system components, such as motor vehicle electrical and electronic system components, in response to commands output from the controller. The system of the present invention thereby provides an objective way of analyzing audio distortion caused by radiated conducted and/or coupled interference from electrical and electronic systems in a controlled test environment.
REFERENCES:
patent: 2913577 (1959-11-01), Johnson
patent: 3365667 (1968-01-01), Deutsch et al.
patent: 3693076 (1972-09-01), Nugent et al.
patent: 3940715 (1976-02-01), Lum
patent: 4028622 (1977-06-01), Evans et al.
patent: 4034299 (1977-07-01), Cho et al.
patent: 4068176 (1978-01-01), McTaggart
patent: 4234964 (1980-11-01), Cielak et al.
patent: 4245352 (1981-01-01), Karpowycz
patent: 4340854 (1982-07-01), Jones et al.
patent: 5133083 (1992-07-01), Crilly, Jr. et al.
patent: 5263185 (1993-11-01), Bush
patent: 5327091 (1994-07-01), Loughry
patent: 5361305 (1994-11-01), Easley et al.
patent: 5475315 (1995-12-01), Cabot
patent: 5511129 (1996-04-01), Craven et al.
patent: 5749047 (1998-05-01), Cabot
patent: 5751148 (1998-05-01), Kennedy et al.
Neal et al. Ambient Measurements in a Semi-Anechoic Chamber. IEEE Internation Symposium on Electromagnetic Compatibility. pp. 123-126, Aug. 1994.
McKeever, K.M. Quantifying Automotive RFI. IEEE Colloquium on EMC and the Motor Vehicle.. pp. 7/1-7/3, 1992.
Crowther, M.T. Radio Interference and Test Method. IEE Colloquium on Vehicle Electromagnetic Compatibility. 2/1-2/3, 1988.
Price, K. Test Medthods for Whole Vehicle Radiated Susceptibility. IEE Colloquium on Vehicle Electromagnetic Compatilibity. pp. 3/1-3/3, 1988.
Ball et al. EMC Testing Rover Cars. Engineering Science and Education Journal. vol. 1, Issue 6. pp. 261-266, Dec. 1992.
Lever et al. Autoprofiling-saving time in RF Immunity testing. IEE Colloquium on Low Cost EMC Testing. pp. 4/1-4/5, 1993.
Kummer et al. Antenna Measurements--1978. Proceedings of the IEEE, vol. 66, No. 4, Apr. 1978.
Goodman Grainger G.
McMillian David L.
Mohan Philip V.
Odrakiewicz Robert S.
Skop Darryl A.
Chrysler Corporation
Fuller III Roland A.
Sofocleous M. David
Todd Voeltz Emanuel
LandOfFree
Vehicle audio distortion measurement system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicle audio distortion measurement system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle audio distortion measurement system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1974200