Transmitting and receiving unit

Details Transmitting and receiving unit Transmitting and receiving unit

2007-04-10

2007-04-10

Urban, Edward F. (Department: 2618)

Telecommunications

Transmitter and receiver at same station

With a common signal processing stage

C455S552100, C455S305000

Reexamination Certificate

active

10673740

ABSTRACT:
A transmitting and receiving unit includes a receiving branch and a transmitting branch that are in each case constructed for conducting complex signals, with a control device that drives a switch by which either a phase-locked loop is switched through to frequency converters provided at the transmitting and receiving end, for providing a common carrier frequency, or in each case an independently operating PLL is provided for the transmitting and receiving branch. Such a configuration enables the transmitter, for example, to operate with direct conversion whereas the receiver can operate, for example, on the low IF principle. The invention is suitable for OFDM multi-carrier systems.

REFERENCES:
patent: 5337005 (1994-08-01), Fenk et al.
patent: 5442811 (1995-08-01), Kobayashi et al.
patent: 5471464 (1995-11-01), Ikeda
patent: 5604927 (1997-02-01), Moore
patent: 5715530 (1998-02-01), Eul
patent: 5768691 (1998-06-01), Matero et al.
patent: 5862181 (1999-01-01), Ishizuka
patent: 5907585 (1999-05-01), Suzuki et al.
patent: 5953641 (1999-09-01), Auvray
patent: 5983081 (1999-11-01), Lehtinen
patent: 6009073 (1999-12-01), Kaneko
patent: 6047178 (2000-04-01), Frlan
patent: 6104764 (2000-08-01), Ohta et al.
patent: 6122487 (2000-09-01), Yamashita
patent: 6137999 (2000-10-01), Lovelace et al.
patent: 6259900 (2001-07-01), Terashima
patent: 6438358 (2002-08-01), Higuchi
patent: 6717981 (2004-04-01), Mohindra
patent: 6795690 (2004-09-01), Weissman et al.
patent: 6850739 (2005-02-01), Higuchi
patent: 44 30 029 (1996-02-01), None
patent: 197 55 102 (1998-06-01), None
patent: 0 527 360 (1993-02-01), None
patent: 04 094 224 (1992-03-01), None
patent: 06 268 553 (1994-09-01), None
patent: 06 315 040 (1994-11-01), None
patent: 09 074 366 (1997-03-01), None
patent: 10 135 865 (1998-05-01), None
patent: 11-251951 (1999-09-01), None
patent: 99/34625 (1999-07-01), None
Muschallik, C.: “Einfluss der Oszillatoren im Frontend auf ein OFDM-Signal”, [Influence of Oscillators in the Front End of a OFDM Signal], Fernseh-und Kino-Technik, vol. 49, Apr. 1995, pp. 196-204.

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