Electrical audio signal processing systems and devices – Binaural and stereophonic – Pseudo stereophonic
Patent
1994-07-18
1996-04-02
Rogers, Scott A.
Electrical audio signal processing systems and devices
Binaural and stereophonic
Pseudo stereophonic
H04S 502
Patent
active
055048196
ABSTRACT:
A surround sound processor for presenting stereophonic audio signals on a number of loudspeakers surrounding a listening area, comprising an input matrix stage, a detector filter and matrix circuit, a direction detector circuit incorporating improved filters, a novel detector splitter circuit providing three direction signals from the two direction detector circuit outputs, a novel three-channel servologic circuit with improved variable filters responding selectively to the rates of change of the direction signals and providing six control voltage signals through linearity correction networks to six voltage-controlled amplifiers, the outputs of which are combined in an output matrix to provide a number of loudspeaker feed signals through buffer amplifiers to the output terminals of the processor. The detector splitter circuit is configurable to either a forward oriented a backward oriented mode of operation, corresponding changes being made to the voltage-controlled amplifiers and output matrix circuitry. Additionally the detector splitter may be switched to eliminate the third direction signal with corresponding changes to the output matrix circuitry.
REFERENCES:
patent: 3281534 (1966-10-01), Dersch
patent: 3632886 (1972-01-01), Scheiber
patent: 3708631 (1973-01-01), Bauer et al.
patent: 3710023 (1973-01-01), Greuzard et al.
patent: 3746792 (1973-07-01), Scheiber
patent: 3836715 (1974-09-01), Ito et al.
patent: 3864516 (1975-02-01), Kameoka et al.
patent: 3883692 (1975-05-01), Tsurushima
patent: 3883832 (1975-05-01), Fosgate
patent: 3885099 (1975-05-01), Tsurushiuma et al.
patent: 3943287 (1976-03-01), Graveraux et al.
patent: 3944735 (1976-03-01), Willcocks
patent: 3959590 (1976-05-01), Scheiber
patent: 3969588 (1976-07-01), Raydon et al.
patent: 4054804 (1977-10-01), Tanaka
patent: 4704728 (1987-11-01), Scheiber
patent: 4891839 (1990-01-01), Scheiber
patent: 4932059 (1990-06-01), Fosgate
patent: 4941177 (1990-07-01), Mandell et al.
patent: 4953213 (1990-08-01), Tasaki et al.
patent: 5027687 (1991-07-01), Iwamatsu
patent: 5028824 (1991-07-01), Young
patent: 5073945 (1991-12-01), Kageyama et al.
patent: 5136650 (1992-08-01), Griesinger
patent: 5251260 (1993-10-01), Gates
patent: 5263087 (1993-11-01), Fosgate
Integrated Electronics, The Volt-Ampere Characteristic, Sec. 3-4.
Popular Electronics, Envelope Generators & Sequencers For Electronic Music, pp. 58-62.
Spice For Circuits and Electronics Using PSpice, Muhammad H. Rashid, pp. 1-118.
Grant II Jerome
Harman International Industries, Inc.
Rogers Scott A.
LandOfFree
Surround sound processor with improved control voltage generator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surround sound processor with improved control voltage generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surround sound processor with improved control voltage generator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2022616