发明名称 CIRCUIT AND METHOD FOR PROCESSING WIDE TELEVISION SIGNAL
摘要 PURPOSE:To reduce the cost of a product and the load on the designing work by executing a wide television(TV) signal processing capable of receiving any kind of TV signal by the same image receiver even if an inputted TV signal is a high quality TV signal, an EDTV signal, or a current standard TV signal. CONSTITUTION:The wide TV signal processing circuit is provided with an HD processor 17, a wide screen identification(ID) signal detecting circuit 18, a mode controller 19, an ID processor 21, an ED processor 22, aspect ratio conversion circuits 26 to 28, and so on. Even if a TV signal inputted from a TV signal input terminal 10 is a signal having the same aspect ratio as that of the current standard TV system or a signal having a wide aspect ratio, the aspect ratio can correctly be recognized. Consequently, display based upon a normal vertical/horizontal ratio can be attained in accordance with the ID of a display connected to a display terminal.
申请公布号 JPH03218192(A) 申请公布日期 1991.09.25
申请号 JP19900012726 申请日期 1990.01.24
申请人 HITACHI LTD 发明人 SUGIYAMA MASAHITO;HIRAHATA SHIGERU;SUZAKI TORU;NAKAGAWA HIMIO;KATSUMATA KENJI
分类号 H04N7/015;H04N5/46;H04N7/01 主分类号 H04N7/015
代理机构 代理人
主权项
地址