US 7,492,288 B2
Transmitting/receiving methods and systems for DC balance encoded data including simultaneous switching noise reducing preambles
Seung-Jun Bae, Daejeon (Korea, Republic of); and Seong-Jin Jang, Seongnam-si (Korea, Republic of)
Assigned to Samsung Electronics Co., Ltd., (Korea, Republic of)
Filed on Mar. 29, 2007, as Appl. No. 11/693,264.
Claims priority of application No. 10-2006-0030752 (KR), filed on Apr. 04, 2006.
Prior Publication US 2007/0229320 A1, Oct. 04, 2007
Int. Cl. H03M 5/00 (2006.01)
U.S. Cl. 341—58  [341/50; 341/51] 45 Claims
OG exemplary drawing
 
24. A data transmitter comprising:
a data encoding unit that is configured to encode data into DC balance encoded data;
a preamble code generator that is configured to generate a preamble of dummy data that is configured to provide an intermediate number of bits of a given logic value that is at least one bit of the given logic value but less than a maximum number of bits of the given logic value in the DC balance encoded data;
a multiplexer that is responsive to the data encoding unit and to the preamble code generator and that is configured to provide the preamble of dummy data followed by the DC balance encoded data; and
an output driver that is responsive to the multiplexer and is configured to transmit the preamble of dummy data followed by the DC balance encoded data.