System for sending and receiving data on a Universal Serial Bus

Details System for sending and receiving data on a Universal Serial Bus System for sending and receiving data on a Universal Serial Bus

1998-01-07

2000-11-07

Lee, Thomas C.

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus access regulation

709230, 714 4, 714799, 370464, G06F 1314

Patent

active

061450456

ABSTRACT:
An apparatus for an method of sending and receiving data on a Universal Serial Bus using a memory shared among a number of endpoints are disclosed. The memory is a double buffer which allows the next packet to be prepared while the current packet is being transmitted. The invention also supports transmission retry.

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patent: 5438575 (1995-08-01), Bertrand
USB Feature Specification: Shared Endpoints; SystemSoft Corporation, Intel Corporation; pp. i-iii, 1-14; Dec. 4, 1997.
Universal Serial Bus Common Class Specification; SystemSoft Corporation, Intel Corporation; pp. i-v, 1-14; Nov. 4, 1997.
Universal Seril Bus Specification; Compaq, Digital Equipment Corporation, IBM PC Company, Intel, Microsoft, NEC, Northern Telecom; pp. 1-268; Jan. 15, 1996.
8.times.930A.times., 8.times.930H.times. Users Manual; Intel; pp. 6.1-10.1 Appendix B-D; 1997.
U.S. application No. 09/003,963, filed Jan. 7, 1998.
U.S. application No. 09/004,004, filed Jan. 7, 1998.
U.S. application No. 09/003,897, filed Jan. 7, 1998.
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U.S. application No. 09/003,925, filed Jan. 7, 1998.

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