CCD device adapted for changing signal formats
US4906997A · kind A · utility
0Cited by
4References
6Claims
0Family size
Inventor
Key dates
| Filing date | Jun 13, 1988 |
| Grant date | Mar 6, 1990 |
| Priority date | — |
| Expiry date | Jun 13, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1215
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A serial-to-parallel analog CCD GaAs device provides high speed A/D or D/A conversion. A high speed analog signal is sampled by shifting the analog data serially into "n" CCD elements. Then a parallel load pulse transfers the analog data into multiple CCD holding elements. A bank of A/D converters converts the analog data. Conversely, the outputs of a bank of D/A converters are loaded in parallel into a serial CCD device of "n" elements. The serial CCD device is shifted out serially to complete the conversion to an analog signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.