Dynamic bus inversion method and system

Details Dynamic bus inversion method and system Dynamic bus inversion method and system

2011-01-11

2011-01-11

Payne, David C (Department: 2611)

Pulse or digital communications

Cable systems and components

C341S055000, C341S056000, C365S189020, C365S189050, C365S189070, C710S105000, C710S305000

Reexamination Certificate

active

07869525

ABSTRACT:
A dynamic bus inversion (DBI) method and system are described. In various embodiments, a transmitter transmits data over a multi-bit high-speed bus to a receiver. In an embodiment, the transmitter determines whether to invert the bus based on the number of data bits that will be transitioning to a new value. If it is determined that the bus is to be inverted, the transmitter encodes a DBI signal on a shared line of the bus. In an embodiment, the shared line is used for different purposes at different times, obviating the need for a dedicated line or pin for the encoded DBI signal. The receiver receives and decodes the DBI signal and, in response, appropriately decodes the received data.

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Form PCT/ISA/220, “PCT Notification of Transmittal of The International Search Report and the Written Opinion of the International Searching Authority, or the Declaration,” 2 pgs.
Form PCT/ISA/210, “PCT International Search Report,” 4 pgs.
Form PCT/ISA/237, “PCT Written Opinion of the International Searching Authority,” 5 pgs.

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