Hdmi receiving circuit and method for determining transmission mode
AssigneeMStar Semiconductor, Inc.
InventorsChun Wen Yeh, Shuo-Ting Kao, Te-Chuan Wang
Life of this patent
Estimating the term…
Abstract
A High-Definition Multimedia Interface (HDMI) receiving circuit receives an image signal and an input clock transmitted via HDMI and generates output data. The HDMI receiving circuit includes: a sampling circuit, sampling the image signal according to a transmission mode and the input clock to generate the output data; a data comparison circuit, coupled to the sampling circuit, determining whether the output data includes predetermined data to generate a determination result; and a control circuit, coupled to the sampling circuit and the data comparison circuit, determining the transmission mode according to the determination result.
Claims15
A High-Definition Multimedia Interface (HDMI) receiving circuit, receiving an image signal and an input clock transmitted via HDMI and generating output data, comprising:
- a sampling circuit, sampling the image signal according to a transmission mode and the input clock to generate the output data;
- a data comparison circuit, coupled to the sampling circuit, determining whether the output data comprises predetermined data to generate a determination result;
- and
- a control circuit, coupled to the data comparison circuit, determining the transmission mode according to the determination result,
- wherein the predetermined data comprises one of vertical synchronization information and horizontal synchronization information.
(canceled)
(canceled)
6-12. (canceled)
A method for determining a High-Definition Multimedia Interface (HDMI) transmission mode, applied to an HDMI receiver that receives an image signal and an input clock transmitted via HDMI, the method comprising:
- sampling the image signal according to a transmission mode and the input clock to generate output data;
- determining whether the output data comprises predetermined data to generate a determination result;
- and
- determining the transmission mode according to the determination result,
- wherein the output data comprises a plurality of sets of image data, and the predetermined data comprises one of vertical synchronization information and horizontal synchronization information.
(canceled)
(canceled)
19-20. (canceled)
A High-Definition Multimedia Interface (HDMI) receiving circuit, receiving an image signal and an input clock transmitted via HDMI and generating output data, comprising:
- a sampling circuit, sampling the image signal according to a transmission mode and the input clock to generate the output data;
- a data comparison circuit, coupled to the sampling circuit, determining whether the output data comprises predetermined data to generate a determination result;
- and
- a control circuit, coupled to the data comparison circuit, determining the transmission mode according to the determination result,
- wherein the predetermined data is one of a scrambled character vector (SCV) and a control code.
A method for determining a High-Definition Multimedia Interface (HDMI) transmission mode, applied to an HDMI receiver that receives an image signal and an input clock transmitted via HDMI, the method comprising:
- sampling the image signal according to a transmission mode and the input clock to generate output data;
- determining whether the output data comprises predetermined data to generate a determination result;
- and
- determining the transmission mode according to the determination result,
- wherein the predetermined data is one of a scrambled code vector (SCV) and a control code.
Dependencies are inferred from the claim text.