Bibliographic data

Document EP000001253757A1 (Pages: 8)

Bibliographic data Document EP000001253757A1 (Pages: 8)
INID Criterion Field Contents
54 Title TI [DE] Phasenumtastungsmodulator (PSK) zur Verringerung des Verhältnisses von Spitzen-zu Durchschnittsleistung
[EN] Phase shift keying (PSK) modulator capable of reducing the peak to average power ratio
[FR] Modulateur par déplacement de phase (PSK) capable de réduire le rapport puissance crête/puissance moyenne
71/73 Applicant/owner PA LUCENT TECHNOLOGIES INC, US
72 Inventor IN FISCHER GEORG DR, DE ; RITTER KAI UWE, DE
22/96 Application date AD Apr 23, 2001
21 Application number AN 01303680
Country of application AC EP
Publication date PUB Oct 30, 2002
33
31
32		 Priority data PRC
PRN
PRD

51 IPC main class ICM H04L 27/20
51 IPC secondary class ICS
IPC additional class ICA
IPC index class ICI
Cooperative patent classification CPC H04L 27/2017
H04L 27/2078
MCD main class MCM
MCD secondary class MCS H04L 27/20 (2006.01)
MCD additional class MCA
57 Abstract AB [EN] An apparatus for transmitting multistage phase shift keying signals comprising a symbol stream, interpolation and pulse shaping means (4), and digital-to-analog converting means (5) for providing an analog base band transmit signal. A displacing means (3) for producing displaced symbols from the symbol stream is arranged at the input of the interpolation and pulse shaping means (4) and includes detecting means (14 ... 17) for detecting predetermined symbol sequences in the symbol stream. If such symbol sequences are detected, displaced symbols (S3', S3") are produced with a view to avoid peak power at the analog base band transmit signal or to avoid crossing near zero power. <IMAGE>
56 Cited documents identified in the search CT EP000000797323A1
GB000002300545A
US000005222104A
US000005930299A
56 Cited documents indicated by the applicant CT
56 Cited non-patent literature identified in the search CTNP
56 Cited non-patent literature indicated by the applicant CTNP
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