Method and apparatus for using walsh shift keying in a spread spectrum communication system
Abstract
The device using multiple parallel functions of each orthogonal communication channel, generating orthogonal code signal communication method and apparatus for user system. Digital data element is signal is originating at least two n lengths' quadrature control element of the EXTERNAL array, wherein the n length's quadrature the common element is provided with a walsh function and communication system. The element (124) usually (126,128) and a one or more code generators a control element selector, a modulation using THE is equal to for orthogonal the function of with is provided with each control element of product. (124) According to producing binary values to a a control element is a data code element with a control element selecting element and data - processing component (100,102) of each group logM. A certain embodiments, a fast Hadamard converter is used to carry on the switching element. Communication signal is generated by them with a orthogonal function in demodulation of preelection value; and a demodulate finally THE energy contents, wherein the energy contents each represents the quadrature modulation unit. Converting energy content with a pair of biggest generating measuring process energy meter data. Related and demodulation can (142) alarm at least two groups of N-TYPE correlation instruments, here, N is a function of used, and a penetrates through the related signal to the holding of each group of correlation instrument (144) demodulators. Each demodulator the output representative THE mutual quardratures the adjusting component and content, and then combination single THE energy content set. The structure further, the stickiness demodulator (172,174) can be used to the received signal amplitude value; and they with the biggest measuring result (170), combination of for data unit (178) collection instrument value.
Term
No projected expiry on record.
- Priority
- Filed
- Granted
- Today
23 members in 13 offices
Priority claims2
| Document | Office | Kind | Date |
|---|---|---|---|
| 35842594 | United States of America | A | |
| 9516001 | United States of America | W |
Members23
| Document | Office | Kind | |
|---|---|---|---|
| CA2208053A1 | Canada | A1 | |
| WO9619879A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU4467196A | Australia | A | |
| US5602833A | United States of America | A | |
| FI972589A | Finland | A | |
| EP0809895A1 | European Patent Office (EPO) | A1 | |
| BR9510283A | Brazil | A | |
| CN1178046A | China | A | |
| AU695711B2 | Australia | B2 | |
| JPH10510122A | Japan | A | |
| HK1005530A1 | Hong Kong, China | A1 | |
| JP2000115130A | Japan | A | |
| JP3043422B2 | Japan | B2 | |
| RU2176854C2 | Russian Federation | C2 | |
| EP0809895B1 | European Patent Office (EPO) | B1 | |
| JP3348149B2 | Japan | B2 | |
| CN1096156C | China | C | |
| AT228281TThis record | Austria | T | |
| ATE228281T1 | Austria | T1 | |
| DE69528910D1 | Germany | D1 | |
| DE69528910T2 | Germany | T2 | |
| CA2208053C | Canada | C | |
| FI115878B | Finland | B |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Ceased as to paragraph 5 lit. 3 law introducing patent treatiesCeasedRER | RER |
Numbers
- Application
- 95943391
Titles2
- German
- VERFAHREN UND GERÄT ZUR SIGNALMODULATION MIT WALSH-FUNKTIONEN IN EINER SPREIZSPEKTRUMKOMMUNIKATIONSANORDNUNG
- English
- METHOD AND DEVICE FOR SIGNAL MODULATION WITH WALSH FUNCTIONS IN A SPREADING SPECTRUM COMMUNICATION ARRANGEMENT
Classification
- CPC, 4
- H04J13/0074
- H04B7/216
- H04J13/0048
- H04J13/102
- IPC, 8
- H04B7 15
- H04B7 216
- H04J11 00
- H04L1 12
- H04L27 30
- H04W72 04
- H04W84 06
- H04W88 14