Title:
TELEVISION AND EDID REWRITING CIRCUIT
Document Type and Number:
Japanese Patent JP2008109219
Kind Code:
A
Abstract:
To perform EDID (Extended Display Identification Data) rewriting operation without disassembling a set even if an EDID of an EDID ROM is defective.
A high-level voltage (H) is supplied to a write protect terminal C2 from a resistance R connected to a high-level voltage line to disable EDID rewriting. When a microcomputer 10 receives a predetermined operation input signal from an operation input unit 10i, the microcomputer outputs a low-level voltage signal to the write protect terminal C2 through a GPIO terminal to enable an EDID in the EDID ROM 10g to be rewritten, thereby rewriting the EDID in the EDID ROM 10g with EDID data input through a DDC terminal C4 of an HDMI connector 10h.
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Inventors:
AZUMA NORIHIRO
Application Number:
JP2006287848A
Publication Date:
May 08, 2008
Filing Date:
October 23, 2006
Export Citation:
Assignee:
FUNAI ELECTRIC CO
International Classes:
G09G5/00; H04N5/44
Domestic Patent References:
JP2005084881A | 2005-03-31 | |||
JP2005063294A | 2005-03-10 | |||
JP2005016910A | 2005-01-20 | |||
JPH10150143A | 1998-06-02 | |||
JP2004118745A | 2004-04-15 | |||
JP2005195734A | 2005-07-21 |
Foreign References:
WO2006043547A1 | 2006-04-27 |
Attorney, Agent or Firm:
Toshiyuki Yokoi