IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0880637
(1997-06-23)
|
발명자
/ 주소 |
- Ramberg, Erik A.
- Froelich, Robert K.
- Fulton, Forrest F.
|
출원인 / 주소 |
- Schlumberger Resource Management Systems, Inc.
|
대리인 / 주소 |
Fish and Richardson, P.C.
|
인용정보 |
피인용 횟수 :
20 인용 특허 :
56 |
초록
▼
A receiver for use in a spread spectrum communication system includes the following components: an acquisition system configured to detect a transmitted spread spectrum signal by simultaneously correlating multiple search phases of a reference spreading signal against an output from a receiver chann
A receiver for use in a spread spectrum communication system includes the following components: an acquisition system configured to detect a transmitted spread spectrum signal by simultaneously correlating multiple search phases of a reference spreading signal against an output from a receiver channel; a demodulation system configured to recover data embedded in the spread spectrum signal by simultaneously correlating the spread spectrum signal with multiple possible data phases of the reference spreading signal over consecutive data periods; and a bank of correlating devices configured for use both in the acquisition system and in the demodulation system.
대표청구항
▼
A receiver for use in a spread spectrum communication system includes the following components: an acquisition system configured to detect a transmitted spread spectrum signal by simultaneously correlating multiple search phases of a reference spreading signal against an output from a receiver chann
A receiver for use in a spread spectrum communication system includes the following components: an acquisition system configured to detect a transmitted spread spectrum signal by simultaneously correlating multiple search phases of a reference spreading signal against an output from a receiver channel; a demodulation system configured to recover data embedded in the spread spectrum signal by simultaneously correlating the spread spectrum signal with multiple possible data phases of the reference spreading signal over consecutive data periods; and a bank of correlating devices configured for use both in the acquisition system and in the demodulation system. P; 1999-133438, JP; 1999-142864, JP; 1999-174477, JP; 1999-212045, JP; 1999-248930, JP; 1999-326922, JP; 1999-344714, JP; 2000-002879, JP; 2000029035, JP; 2000-056311, JP; 2000-066165, JP; 2000-137235, JP; 2000-147528, JP; 2000-193988, JP; 2000-241824, JP; 2000-284295, JP; 2000-292799, JP; 2000-310759, JP; 2000-310784, JP; 2000-338501, JP; 2001-005401, JP; 2001-005405, JP; 2001-013506, JP; 2001-033793, JP; 2001-042341, JP; 2001-051284, JP; 2001-066615, JP; 2001091727, JP; 2001117105, JP; 2001-117109, JP; 2001-133745, JP; 2001133794, JP; 2001-133799, JP; 2001142074, JP; 2001147437, JP; 2001154211, JP; 2001-166272, JP; 2001-166310, JP; 2001-183683, JP; 2001-209052, JP; 2001-209060, JP; 2001-222017, JP; 2001-235758, JP; 2001-215459, JP; 2001255542, JP; 2001264782, JP; 2001-201750, JP; 2001-272640, JP; 2001-281675, JP; 2001-281678, JP; 2001-282126, JP; 2001-305563, JP; 2001-330837, JP; 2001330840, JP; 2001-356353, JP; 2001356354, JP; 2002014360, JP; 2002023176, JP; 2002049045, JP; 2002082340, JP; 2002090759, JP; 2002090760, JP; 2002107740, JP; 2002122872, JP; 2002122873, JP; 2002080321, JP; 2002202512, JP; 2002202514, JP; 2002214626, JP
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