Home

Primary Examiner: Claffy, Kathleen H.
Assistant Examiner: Chin, Tommy P.
Attorney: Olson; Spencer E.

Next ten patents ordered by date:

Digital conference bridge
Tone detector using spectrum parameter estimation
Long distance telephone call limiting device
Lamp control circuit for key telephone systems
Cartridge muting circuit
Sound track selector system for phonograph record players
Moving voice coil transducer having a flat diaphragm of an impregnated knit
Telephone hook switch comprising separately operable contact groups
Digital echo suppressor
Network path test circuit

Translate:
En
De
Es
Fr
It
Pt
Ja
Ko
Zh

Title: Compatible four channel radio broadcast and receiving system

Abstract: A compatible four channel system for use in conjunction with a radio transmission system for transmitting four individual audio signals over a medium having primary and secondary information channels and first and second subsidiary information channels, the primary and secondary channels carrying information that is consistent and compatible with existing monophonic and stereophonic standards.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Bauer, Benjamin B. (Stamford, CT, US)

Application Number: 462044
Filing Date: 1974-04-18
Publication_date: 1976-02-10
Assignee: CBS Inc. (New York, NY)
Primary Class(es): 381/6 381/5
Other Classes:
US Patent Ref:

3761628	Sep, 1973	Bauer	179/1.
3814858	Jun, 1974	Parker	179/15.
3875338	Apr, 1975	Bauer	179/1.

Other Refs: Other References: Discrete-Matrix Multichannel Stereo by Cooper et al., Paper Presented Mar. 1972, Central Europe Section Audio Engineering Society.
QFMX-Quadruplex FM Transmission Using the 4-4-4 QMX Matrix System by Cooper, Journal AES, Mar. 1974, pp. 82-87.
Compatible FM Broadcasting of Panoramic Sound by Gibson et al., AES Preprint Presented Sept. 15, 1972.