Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo
Patent
1994-01-06
1996-12-03
Kuntz, Curtis
Electrical audio signal processing systems and devices
Binaural and stereophonic
Broadcast or multiplex stereo
381 2, 370339, 370343, 370345, H04H 500
Patent
active
055816177
ABSTRACT:
A system is provided which transmits either analog or digital data signals over the air. The system includes a transmitter and a receiver. The transmitter and receiver are arranged to transmit signals using a carrier signal having a high frequency such as in the range of 902-928 MHz. The transmitter and receiver are configured to provide for the transmission of two channels of stereophonic signals while maintaining high signal-to-noise ratios, good frequency response, and low distortion. To provide for the proper transmission of signals between transmitter 10 and receiver 12, these devices include oscillating circuits having ceramic resonators which provide a base frequency which is readily modulated to facilitate proper transmission of either analog or digital signals between the transmitter and receiver. To further improve the transmission capability between the transmitter and receiver, the transmitter and receiver both include substantial buffering, isolation and shielding between selected circuit components to prevent unwanted areas of frequency modulation within the transmitter and receiver.
REFERENCES:
patent: 3256389 (1966-06-01), Ehrich
patent: 3471646 (1969-10-01), Magnuski et al.
patent: 3684965 (1972-08-01), Gautney et al.
patent: 3757220 (1973-09-01), Abel
patent: 3787772 (1974-01-01), Sedin
patent: 4079203 (1978-03-01), Dragoo
patent: 4501019 (1985-02-01), Matsukura et al.
patent: 4586081 (1986-04-01), St. Amaud et al.
patent: 4654859 (1987-03-01), Kung et al.
patent: 4704715 (1987-11-01), Shibagaki
patent: 4710970 (1987-12-01), Wu et al.
patent: 4829570 (1989-05-01), Schotz
patent: 4864636 (1989-09-01), Brunius
patent: 4922483 (1990-05-01), Kobayashi
patent: 4932072 (1990-06-01), Toko
patent: 4951006 (1990-08-01), Cohen
patent: 5012350 (1991-04-01), Streck et al.
patent: 5046132 (1991-09-01), Trefney
patent: 5077835 (1991-12-01), Margairaz et al.
patent: 5106826 (1992-04-01), Alford et al.
patent: 5152003 (1992-09-01), Poch
patent: 5155590 (1992-10-01), Beyees, II et al.
patent: 5216378 (1993-06-01), Einbinder et al.
patent: 5299264 (1994-03-01), Schotz et al.
CMOS Analog Multiplexers/Demultiplexers, CD4051B, CD4052B, CD4053B Types (RCA).
CMOS Ripple-Carry Binary Counter/Dividers, CD4020B, CD4024B, CD4040B Types (RCA).
(Coaxial Ceramic Resonator Data Sheet) Murata Products for Mobile Telecommunications E-AMPS.
NEC--General Purpose Dual-Gate GaAs Mesfet, NE25137, NE25139.
NEC--NPN Silicon High Frequency Transistor, NE856 Series.
VCO Nonadjusting PLL FM MPX Demodulator with SNC, HCC Functions, Pilot Canceler for Car Stereos, LA3430 (Sanyo).
Monolithic Linear Integrated Circuit FM IF System, LA1235 (Sanyo).
Coaxial Ceramic Resonators for UHF and Microwaves, Gundolf Kuchler (Siemens).
Radio Electronics, Editorial--Some happenings at the FCC Jan. 1988, Brian C. Fenton.
Spec-Com The Radio Amateurs Journal for Specialized Communications Sep./Oct. 1985.
Buczkiewicz Robert T.
Lofgren John A.
Schotz Larry
Kuntz Curtis
L. S. Research, Inc.
Oh Minsun
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