Simulcast system and channel unit
US5060240A · kind A · utility
16Cited by
9References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1989 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Feb 14, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H20/67
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A simulcast broadcast uses digital signal processing techniques to scale pulse coded modulation samples of a signal for broadcast. Samples are adjusted to fully utilize all quantization levels representable by an 8-bit word. Time delay is adjustable using digital techniques by writing and reading data into and out of a RAM. Signal amplitude is adjustable by multiplying samples by a numeric factor. A computer can be used to adjust processing, delay and amplification of the digital signal processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.