Bandsplitter systems
US4181822A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1978 |
| Grant date | Jan 1, 1980 |
| Priority date | — |
| Expiry date | Mar 7, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/667
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for partitioning a wide-band signal into a plurality of separate narrow-band signals partition the wide-band signal into a low-frequency component and a high-frequency component at least partially above the low-frequency component in the spectrum of the wide-band signal. The low-frequency component is translated into a first narrow-band signal having a band of frequencies at least partially higher than the frequencies of the low-frequency component. The high-frequency component is partitioned into at least two separate further narrow-band signals, each having a bandwidth smaller than the bandwidth of the high-frequency component. Alternatively or additionally, sequential pluralities of elements (samples) of the wide-band signal are distributed over a plurality of groups, and each plurality of elements in each group is separately stored. Narrow-band signals are provided by separately releasing stored pluralities of elements from the groups in an at least partially time-coincident relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.