US 11,843,487 B2
High performance receivers for mobile industry processor interfaces (MIPI) and methods of operating same
Seongkwan Lee, Yongin-si (KR); Minho Kang, Seoul (KR); and Cheolmin Park, Gumi-si (KR)
Assigned to Samsung Electronics Co., Ltd.
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jul. 6, 2021, as Appl. No. 17/368,459.
Claims priority of application No. 10-2020-0103889 (KR), filed on Aug. 19, 2020.
Prior Publication US 2022/0060358 A1, Feb. 24, 2022
Int. Cl. H04L 25/49 (2006.01); H04N 5/06 (2006.01); G09G 3/20 (2006.01)
CPC H04L 25/4917 (2013.01) [G09G 3/2096 (2013.01); H04N 5/06 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A receiver compatible with a mobile industry processor interface (MIPI) C-PHY physical layer, said receiver comprising:
a plurality of variable-gain amplifiers responsive to respective multi-level signals;
a plurality of filters having independently controllable cutoff frequencies, said plurality of filters responsive to respective signals generated by said plurality of amplifiers; a branch circuit configured to generate at least a respective pair of branch signals from each of a plurality of filtering signals generated by the plurality of filters; an array of comparators responsive to the branch signals generated by said branch circuit, said array of comparators comprising a first comparator configured to compare a first one of a first pair of branch signals derived from a first of the plurality of filters to a first one of a second pair of branch signals derived from a second of the plurality of filters, and a second comparator configured to compare a second one of the first pair of branch signals to a first one of a third pair of branch signals derived from a third of the plurality of filters; and a jitter detection circuit, which is configured to set respective gains of the plurality of variable-gain amplifiers and respective cutoff frequencies of the plurality of filters, in response to detecting time-fluctuating jitter in feedback signals derived from output terminals of said array of comparators including the first and second comparators.