US 11,671,237 B2
Data driving device and method for driving the same
Do Seok Kim, Daejeon (KR); Yong Hwan Mun, Daejeon (KR); Myung Yu Kim, Daejeon (KR); and Hyun Pyo Cho, Daejeon (KR)
Assigned to SILICON WORKS CO., LTD., Daejeon (KR)
Filed by SILICON WORKS CO., LTD., Daejeon (KR)
Filed on Apr. 19, 2021, as Appl. No. 17/234,228.
Claims priority of application No. 10-2020-0047117 (KR), filed on Apr. 20, 2020.
Prior Publication US 2021/0328757 A1, Oct. 21, 2021
Int. Cl. H04L 7/00 (2006.01); H04L 7/02 (2006.01)
CPC H04L 7/0087 (2013.01) [H04L 7/02 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A data driving device comprising:
a clock recovery circuit to perform a clock training using a communication signal received during a plurality of time sections; and
a control circuit to change a set value of a circuit influenced by a frequency of the communication signal among circuits of the clock recovery circuit in each time section, to check a result of a clock training in the clock recovery circuit according to the change of the set value in each time section, and to determine an optimum value for the set value,
wherein the circuit comprises an oscillator which is either a current control oscillator or a voltage control oscillator, and
wherein the set value comprises a value of a reference current inputted into the current control oscillator or a value of a reference voltage inputted into the voltage control oscillator.