Telecommunications – Transmitter
Reexamination Certificate
2005-11-17
2008-08-12
Le, Thanh C (Department: 2618)
Telecommunications
Transmitter
C455S115100, C455S127100
Reexamination Certificate
active
07412211
ABSTRACT:
A method and apparatus are provided for implementing an enhanced hand shake protocol for microelectronic communication systems. A transmitter and a receiver is coupled together by a transmission link. The transmitter receives an idle input. The idle input is activated when the transmitter is not transmitting data and the transmitter applies a first common mode level to the receiving unit. The idle input is deactivated when the transmitter is ready to transmit data and the transmitter raises the common mode level to the receiving unit. Responsive to the receiver detecting the common mode level up-movement, then the receiver receives the transmitted data signals. After the desired data has been sent, the transmitter terminates communications, drops the common mode level with the idle input being activated.
REFERENCES:
patent: 2005/0190828 (2005-09-01), Hsu et al.
patent: 2006/0105725 (2006-05-01), Cheung et al.
Hsu Louis Lu-Chen
Mandelman Jack Allan
Mason James Stephen
International Business Machines - Corporation
Le Thanh C
Pennington Joan
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