H04N 1/4135
In which a baseband signal showing more than two values or a
Official title: {in which a baseband signal showing more than two values or a continuously varying baseband signal is transmitted or recorded}
H04N1/4135 (In which a baseband signal showing more than two values or a) appears on 10 US grants and 0 published applications in this corpus.
Search patents in H04N- Granted patents
- 10
- Published applications
- 0
- Assignees
- 6
- Inventors
- 11
- Latest grant
- 11 Aug 1987
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- GII/GIII transmission system11 Aug 1987US 4,686,578 AInternational Business Machines Corporation
- Information forming apparatus28 Dec 1982US 4,366,505 ACanon Kabushiki Kaisha
- High efficiency facsimile transmission system30 Sep 1980US 4,225,888 AOki Electric Industry Co., Ltd.
- Facsimile compression system29 Jan 1980US 4,186,415 AOki Electric Industry Co., Ltd.
- Run length encoding and decoding methods and means20 Jun 1978US 4,096,520 AXerox Corporation
No published applications in this class yet.
Most cited
By later US patents
- Data compression36US 3,993,862 A1976
- Run length encoding and decoding methods and means20US 4,096,527 AXerox Corporation · 1978
- Facsimile compression system16US 4,186,415 AOki Electric Industry Co., Ltd. · 1980
- Information forming apparatus9US 4,366,505 ACanon Kabushiki Kaisha · 1982
- Run length encoding and decoding methods and means7US 4,056,828 AXerox Corporation · 1977