US Patent No: 5,613,065
Number of patents in Portfolio can not be more than 2000
Information broadcasting system having reception error minimizing facility
Stats
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Mar 18, 1997
Issued date -
Jun 7, 1995
filing date -
08/481,135
serial no -
In Force
status
Importance
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Abstract
Information selectively read out from an information source storing various types of information is repeatedly sent from a center office to a number of terminal equipment units with an error check code added on. The terminal equipment units use the error check code to detect if there is an error in the received information. If the information is received without error, the reception operation is ended for each terminal equipment unit. In this case, there is no interposition of a protocol for confirming if the transmission and reception of the information had been performed normally, so the load on the center office is lightened and it is possible for each of the terminal equipment units to receive the information without error.
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First Claim
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,742,512 Multipoint communication system having polling and reservation schemes | 174 | 1986 | |
| 4,766,599 Communication system with variably repeated transmission of data blocks | 20 | 1986 | |
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| 5,101,406 Wireless communications system | 64 | 1989 | |
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| 4,951,281 Multiplex transmission system | 26 | 1988 | |
| 5,299,194 Multiplex transmission system | 10 | 1992 | |
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| 4,234,918 Time-shared, multi-phase memory system with error checking and data correcting | 6 | 1977 | |
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| 4,720,831 CRC calculation machine with concurrent preset and CRC calculation function | 8 | 1985 | |
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| 5,313,467 Integrated communication link having a dynamically allocatable bandwidth and protocol for transmission of allocation information over the link | 99 | 1992 | |
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| 4,271,505 Process communication link | 51 | 1979 | |
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| 5,007,055 Information distribution system | 7 | 1989 | |
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| 4,908,828 Method for error free message reception | 49 | 1987 | |
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| 5,163,056 Apparatus for carrying out serial control | 11 | 1990 | |
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| 4,868,866 Broadcast data distribution system | 260 | 1988 | |
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| 4,611,274 Data transmission system via power supply line | 37 | 1983 | |
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| 4,763,329 Modular data routing system | 39 | 1986 | |