Pulse or digital communications – Repeaters – Testing
Patent
1991-06-25
1994-02-15
Kuntz, Curtis
Pulse or digital communications
Repeaters
Testing
4551922, H04L 2706
Patent
active
052873889
ABSTRACT:
A frequency-offset removal apparatus comprises a receiving section for receiving a signal including a training sequence, a local oscillator for generating an oscillating signal to synchronize with the received signal, a frequency sweeping section for sweeping the frequency of the oscillating signal through a specific frequency which is identical with the carrier frequency of the received signal, a frequency shifting section for shifting the carrier frequency of the received signal by each oscillating signal, a selector for selecting one specific frequency-shifted-signal having the nearest frequency to the specific frequency from the frequency-shifted-signals generated in the frequency shifting section, and a frequency adjusting circuit for adjusting the frequency of the oscillating signal to generate a specific oscillating signal which produces the specific frequency-shifted-signal after shifting by the received signal.
REFERENCES:
patent: 4348641 (1982-09-01), Scott et al.
patent: 4498191 (1985-02-01), Rodgers
patent: 4531089 (1989-07-01), Ishizuka et al.
patent: 4651104 (1987-03-01), Miyo
patent: 4696056 (1987-09-01), Morita
patent: 4764730 (1988-08-01), Miyo et al.
patent: 4916405 (1990-04-01), Keate et al.
patent: 5052024 (1991-09-01), Moran, III et al.
patent: 5107522 (1992-04-01), Kitayama et al.
patent: 5113416 (1992-05-01), Lindell
patent: 5159282 (1992-10-01), Serizawa et al.
Transaction of IEICE of Japan; Author, K. Okanoue et al.; A New MLSE Receiver With Carrier Frequency Offset Compensater for TDMA Mobile Radio; Trans. IEICE. vol.-J-73-B-II, No. 11, pp. 736-744.
Ogura Koji
Serizawa Mutsumu
Kabushiki Kaisha Toshiba
Kuntz Curtis
Webster Bryan E.
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