Sony Corporation

Sony Electronics Inc

John Van Ryzin

Adrian Parvulescu

I/O port signal conversion apparatus for converting between I/O port signals of a first voltage level coupled from or supplied to an I/O port of a computer and A1 signals of a second voltage level supplied to or coupled from audio/video equipment arranged in an S-LINK cable bus system with an S-LINK cable bus. The computer inserts into the I/O port signals audio/video equipment headers that flag respective audio/video equipment which poll the S-LINK cable bus. A plug couples the I/O port signals and the A1 signals between the I/O port and the S-LINK cable bus system. A voltage control circuit disposed within the plug converts between the voltage level of the I/O port signals and the voltage level of the A1 signals.

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Madison, NJ, United States of America

John Van Ryzin