| US 7,595,661 B2 | ||
| Low voltage differential signaling drivers including branches with series resistors | ||
| Jin-hyun Kim, Gyeonggi-do (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd., (Korea, Republic of) | ||
| Filed on Dec. 06, 2005, as Appl. No. 11/295,353. | ||
| Claims priority of application No. 10-2004-0107994 (KR), filed on Dec. 17, 2004. | ||
| Prior Publication US 2006/0132179 A1, Jun. 22, 2006 | ||
| Int. Cl. H03K 19/0175 (2006.01); H03B 1/00 (2006.01); H03K 3/00 (2006.01) | ||
| U.S. Cl. 326—82 [327/108; 327/563] | 32 Claims |
| 26. A data communication method for a low voltage differential signaling driver which comprises first and second branches
and a control switch which controls the reception of a differential signal and transmits and receives the differential signal
via transmission lines in response to data, the data communication method comprising:
determining whether to transmit or receive a differential signal;
turning off the control switch if it is determined to transmit the differential signal;
selectively turning on transistors included in the first and second branches according to the voltage level of data input
to the low voltage differential signaling driver;
outputting the differential signal to the transmission lines using a current path formed by the transistors that are turned
on;
turning on the control switch if it is determined to receive the differential signal; and
receiving the differential signal via the transmission lines.
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