发明名称 TRANSMITTER/RECEIVER FOR TERRESTRIAL DIGITAL TELEVISION
摘要 PROBLEM TO BE SOLVED: To provide a transmitter/receiver capable of easily receiving the one-segment broadcasting of a terrestrial digital television with the use of a portable terminal such as a cellular phone even in an electric wave-shielded space or a feeble electric field space. SOLUTION: The transmitter/receiver includes: a resend means 6 for inputting a first terrestrial digital television broadcasting wave comprising a one-segment broadcasting wave, and transmitting a second terrestrial digital television broadcasting wave, which is obtained by performing frequency conversion processing at least in the one-segment broadcasting wave of the inputted first terrestrial digital television broadcasting wave, from a resend antenna 7; and a receiving means 9 for receiving the second terrestrial digital television broadcasting wave via a reception antenna. The resend means 6 includes: a frequency converting means for performing conversion into a frequency lower than the lower limit frequency of the frequency band of the broadcasting wave so as to acquire the second terrestrial digital television broadcasting wave; and a driving means for driving the resent antenna 7 so as to transmit the second terrestrial digital television broadcasting wave from the resent antenna 7. COPYRIGHT: (C)2008,JPO&INPIT
申请公布号 JP2007318404(A) 申请公布日期 2007.12.06
申请号 JP20060145184 申请日期 2006.05.25
申请人 DENKI KOGYO CO LTD 发明人 TOMITA MASAO
分类号 H04N7/16;H04B7/15;H04H20/02;H04N5/00;H04N7/173;H04N21/61 主分类号 H04N7/16
代理机构 代理人
主权项
地址