GB9508974D0 - A method for processing signals - Google Patents

A method for processing signals

Info

Publication number
GB9508974D0
GB9508974D0 GBGB9508974.4A GB9508974A GB9508974D0 GB 9508974 D0 GB9508974 D0 GB 9508974D0 GB 9508974 A GB9508974 A GB 9508974A GB 9508974 D0 GB9508974 D0 GB 9508974D0
Authority
GB
United Kingdom
Prior art keywords
processing signals
signals
processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB9508974.4A
Other versions
GB2300545A (en
GB2300545B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions UK Ltd
Original Assignee
Motorola Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Ltd filed Critical Motorola Ltd
Priority to GB9508974A priority Critical patent/GB2300545B/en
Publication of GB9508974D0 publication Critical patent/GB9508974D0/en
Publication of GB2300545A publication Critical patent/GB2300545A/en
Application granted granted Critical
Publication of GB2300545B publication Critical patent/GB2300545B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2078—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the phase change per symbol period is constrained
    • H04L27/2082—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the phase change per symbol period is constrained for offset or staggered quadrature phase shift keying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB9508974A 1995-05-03 1995-05-03 A method for processing signals Expired - Lifetime GB2300545B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9508974A GB2300545B (en) 1995-05-03 1995-05-03 A method for processing signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9508974A GB2300545B (en) 1995-05-03 1995-05-03 A method for processing signals

Publications (3)

Publication Number Publication Date
GB9508974D0 true GB9508974D0 (en) 1995-06-21
GB2300545A GB2300545A (en) 1996-11-06
GB2300545B GB2300545B (en) 1999-10-27

Family

ID=10773908

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9508974A Expired - Lifetime GB2300545B (en) 1995-05-03 1995-05-03 A method for processing signals

Country Status (1)

Country Link
GB (1) GB2300545B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1133834B1 (en) * 1998-10-27 2005-08-17 Siemens Aktiengesellschaft Method for controlling memory access in rake receivers with early-late tracking in telecommunications systems
JP3610012B2 (en) * 1998-10-27 2005-01-12 シーメンス アクチエンゲゼルシヤフト A telecommunication system that performs wireless telecommunication between mobile and / or stationary transceivers, eg a rake receiver in a third generation mobile radio system
US6236864B1 (en) * 1998-11-27 2001-05-22 Nortel Networks Limited CDMA transmit peak power reduction
JP3362009B2 (en) * 1999-03-01 2003-01-07 シャープ株式会社 Spread spectrum communication equipment
CN1148989C (en) 1999-05-31 2004-05-05 韩国电子通信研究院 Apparatus and method for modulating data information using orthogonal variable extended system digit code
TW498664B (en) * 1999-09-17 2002-08-11 Qualcomm Inc Method and apparatus for rotating a phase of a modulated signal
US7415060B1 (en) 1999-09-29 2008-08-19 Nokia Corporation Spread spectrum communication system
EP1564904B1 (en) * 2000-03-23 2007-02-28 Interdigital Technology Corporation Efficient spreader for spread spectrum communication systems
ES2280068T3 (en) * 2000-03-23 2007-09-01 Interdigital Technology Corporation EFFICIENT SPREADER FOR SPLIT SPECTRUM COMMUNICATION SYSTEMS.
EP1253757A1 (en) * 2001-04-23 2002-10-30 Lucent Technologies Inc. Phase shift keying (PSK) modulator capable of reducing the peak to average power ratio
KR100423724B1 (en) * 2001-06-09 2004-03-22 주식회사 팬택앤큐리텔 Apparatus and method for processing data using CQPSK of wireless communication system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4420376C2 (en) * 1993-09-22 1998-09-17 Hewlett Packard Co Quadrature modulator

Also Published As

Publication number Publication date
GB2300545A (en) 1996-11-06
GB2300545B (en) 1999-10-27

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20130926 AND 20131002

PE20 Patent expired after termination of 20 years

Expiry date: 20150502