发明名称 |
Microcomputer processing approach for a non-volatile TV station memory tuning system |
摘要 |
A television tuning system having a non-volatile memory for storing digital tune words is electrically updated by a microcomputer type architecture control circuitry. A ROM memory matrix is provided for the storage of VHF minimum and maximum binary tune words corresponding to each of twelve VHF channels in addition to a UHF minimum and maximum binary tune word encompassing all possible 72 UHF channels. Tuning of individual VHf and UHF channels is accomplished by incrementing or decrementing a given tune word within the minimum and maximum limits established in the ROM memory matrix by means of a microcomputer processing approach.
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申请公布号 |
US4093922(A) |
申请公布日期 |
1978.06.06 |
申请号 |
US19770778400 |
申请日期 |
1977.03.17 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
BUSS, KENNETH GEORGE |
分类号 |
H03J1/00;H03J5/02;H03J7/28;(IPC1-7):H04B1/26 |
主分类号 |
H03J1/00 |
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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