Invention Grant
- Patent Title: Automatic quantization clock phase adjustable display apparatus
- Patent Title (中): 自动量化时钟相位可调显示装置
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Application No.: US13013297Application Date: 2011-01-25
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Publication No.: US08421920B2Publication Date: 2013-04-16
- Inventor: Masahiro Funada
- Applicant: Masahiro Funada
- Applicant Address: JP
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2010-013789 20100126
- Main IPC: H03L7/00
- IPC: H03L7/00 ; G09G5/00

Abstract:
The method adjusts the phase of a quantization clock signal for a video signal automatically based on a received analogue video signal. The method includes a step of determining a horizontal start position and a horizontal end position of a pixel-level transition within the analogue video signal, a step of determining a stable-period start position and a stable-period end position at each transition by sequentially changing an adjustable phase of the quantization clock signal, a step of calculating an appropriate phase of the quantization clock signal based on the determined timings of the beginning and end of the stable periods within the analogue signal, and a step of setting the phase of the quantization clock signal to the calculated appropriate phase.
Public/Granted literature
- US20110181777A1 AUTOMATIC QUANTIZATION CLOCK PHASE ADJUSTABLE DISPLAY APPARATUS Public/Granted day:2011-07-28
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