Spread spectrum radiocommunication device utilizing rake reception scheme
US5940432A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1996 |
| Grant date | Aug 17, 1999 |
| Priority date | — |
| Expiry date | Aug 8, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7117
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A spread spectrum radiocommunication device includes a plurality of digital data demodulators which are independently operated to track the paths of a multipath radio signal transmitted from a to-be-communicated device and PN code generators each of which has a ROM storing PN codes and which are respectively provided in the digital data demodulators. In a control section, a ROM address latched by an address latch circuit is monitored and a PN address relative value is generated, and the PN address relative value is added to a basic address generated from an address counter in an address adder and the added address is supplied to the PN code ROM to generate a PN code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.