Accession Number : ADD005028

Title :   Multiple-Channel Data Switch.

Descriptive Note : Patent,


Personal Author(s) : Koenig,Harry J

Report Date : 21 Feb 1978

Pagination or Media Count : 10

Abstract : A data switch which can rapidly configure and reconfigure multiple channels between computer equipments for digital data transmitted at a rate in excess of 10 megabits per second. The switch includes a switch matrix connected between an input and an output voltage level buffer, a mini computer, and control circuitry. The switch matrix comprises three stages, each containing 256 switching elements which are active integrated circuit elements each having 16 data inputs and one data output. A channel is configured through the switch matrix when one switching element in each stage responds to a control signal to couple one of its data inputs to its data output, over a million different channel configurations being possible. Each switching element is heavily grounded to effectively eliminate cross talk between channels and each data input line of each switching element is provided with an amplifier to improve time fidelity of the switch. (Author)

Descriptors :   *Patents, *Multichannel communications, *Data transmission systems, *Electronic switches, Data processing equipment, Digital systems

Subject Categories : Electrical and Electronic Equipment
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE