Combined acoustic surface wave and semiconductor device particularly suited for signal convolution
US4037174A · kind A · utility
14Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1973 |
| Grant date | Jul 19, 1977 |
| Priority date | — |
| Expiry date | Dec 10, 1993 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06G7/195
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The disclosure relates to a novel device for performing signal convolution functions such as auto and cross correlation through the use of combined acoustic surface wave and semiconductor devices. A detector or pickup unit comprising a plurality of interdigital fingers coupled to associate semiconductor diodes is disposed on the surface of an acoustic substrate in the path of surface waves propagated along the surface of the substrate. The diodes are operatively connected to a summing bus from which an output signal indicative of some characteristics of the surface waves may be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.