发明名称 |
Audio program reception terminal for television delivery system |
摘要 |
The invention relates to apparatus and methods for upgrading a set top terminal for use with a cable television program delivery system. A hardware upgrade or expansion card is connected to a set top terminal to enhance the functionality of the set top terminal and to allow the set top terminal to receive digital audio programs. The hardware upgrade includes audio signal processing circuitry such as a tuner, demodulator, demultiplexor, decryptor, and decompressor. A microprocessor in the hardware upgrade enables the upgrade to accept subscriber inputs so as to select a particular digital audio program for listening. Subscriber inputs may be generated from a remote control and a menu system of the set top terminal.
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申请公布号 |
US7017178(B1) |
申请公布日期 |
2006.03.21 |
申请号 |
US19980162768 |
申请日期 |
1998.09.30 |
申请人 |
SEDNA PATENT SERVICES, LLC |
发明人 |
HENDRICKS JOHN S.;BONNER ALFRED E.;WUNDERLICH RICHARD E.;BERKOBIN ERIC C. |
分类号 |
H04H20/86;H04H60/23;H04H60/94;H04M1/57;H04N5/44;H04N5/445;H04N5/45;H04N5/60;H04N7/088;H04N7/10;H04N7/16;H04N7/173 |
主分类号 |
H04H20/86 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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