Title:
【発明の名称】MUSE/NTSCダウンコンバータ
Document Type and Number:
Japanese Patent JP2823308
Kind Code:
B2
Abstract:
PURPOSE:To simplify the interconnection between devices by providing a signal selection circuit selecting an output of an encoder at the reception of a MUSE signal and an output of a de-emphasis circuit at the reception of an NTSC signal and outputting the selected output. CONSTITUTION:An NTSC composite video signal demodulated from a BS-IF signal in a BS tuner is inputted to an input terminal A at reception of an NTSC signal, de-emphasized at a de-emphasis circuit 16 and outputted to a terminal B via a signal selection circuit 15'. Moreover, a demodulated MUSE signal is inputted to the input terminal A at the reception of a MUSE signal and processed and converted into an NTSC composite video signal (a) via an NTSC encoder 14 in the circuit stage after an A/D converter 1 and outputted to the terminal B via the circuit 15'. Thus, the interconnection between devices is simplified even at the reception of both the MUSE signal and the NTSC signal.
Inventors:
Usui Akira
Application Number:
JP8636990A
Publication Date:
November 11, 1998
Filing Date:
March 30, 1990
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04N7/015; H04N7/01; H04N11/20; (IPC1-7): H04N11/20; H04N7/01
Domestic Patent References:
| JP1126094A | ||||
| JP1177293A |
Attorney, Agent or Firm:
Yoshihiro Morimoto