US 11,659,136 B2
Data conversion and high definition multimedia interface receiving device
Che-Wei Yeh, Hsinchu (TW); Chien-Hsun Lu, Hsinchu (TW); Zhan-Yao Gu, Hsinchu (TW); and Chun-Chieh Chan, Hsinchu (TW)
Assigned to REALTEK SEMICONDUCTOR CORPORATION, Hsinchu (TW)
Filed by REALTEK SEMICONDUCTOR CORPORATION, Hsinchu (TW)
Filed on Mar. 31, 2021, as Appl. No. 17/219,625.
Claims priority of application No. 109136161 (TW), filed on Oct. 19, 2020.
Prior Publication US 2022/0124282 A1, Apr. 21, 2022
Int. Cl. H04N 7/01 (2006.01); G09G 5/00 (2006.01); H04N 5/765 (2006.01)
CPC H04N 7/0125 (2013.01) [G09G 5/006 (2013.01); H04N 5/765 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A data conversion device, comprising:
a storage circuit, configured to store a pixel data in a high definition multimedia interface (HDMI) signal according to a first clock, and output an image data according to a second clock; and
a frequency tuning circuit, configured to dynamically adjust the second clock according to a control signal in the HDMI signal and the second clock, and transmit the adjusted second clock to the storage circuit,
wherein the control signal is associated with an accumulated volume of the pixel data being stored by the store circuit,
wherein the frequency tuning circuit comprises:
a data calculator, configured to output a water level value according to the first clock, the control signal and the second clock; and
a phase-locked loop, configured to output the second clock according to the water level value.