Method and apparatus for reducing spurious noise levels in an au

Details Method and apparatus for reducing spurious noise levels in an au Method and apparatus for reducing spurious noise levels in an au

1992-10-30

1993-09-28

Swann, Tod R.

Pulse or digital communications

Repeaters

Testing

380 35, 380 48, H04K 100

Patent

active

052491994

ABSTRACT:
An audio system (600) typically includes an audio signal processor (610), a controller (607) for controlling data signals, and a peripheral data source (613). The audio signal processor (610) exchanges information with a remote audio device (603) via a communication resource (605). A method of reducing spurious noise levels on the communication resource (605) includes generating a timing signal (400) having a period and randomly altering the period (409, 411, 413) of the timing signal (400) between a first predetermined value and a second predetermined value. The randomly altered timing signal are then used to effect control of the data signals, while providing a reduced level of spurious noise on the communication resource (605).

REFERENCES:
patent: 4667191 (1991-05-01), Comroe et al.
patent: 4977577 (1990-12-01), Arthur et al.
patent: 5003629 (1991-03-01), Ness-Cohn et al.
patent: 5109390 (1992-04-01), Gilhousen et al.
patent: 5146958 (1992-11-01), Omura
patent: 5148477 (1992-09-01), Ito

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