Pulse or digital communications – Repeaters – Testing
Patent
1989-12-01
1991-09-17
Safourek, Benedict V.
Pulse or digital communications
Repeaters
Testing
307356, 328149, H04L 2506, H03K 522
Patent
active
050501909
ABSTRACT:
A reference voltage generating circuit (9) for supplying a reference voltage (Vag.+-..DELTA.V) is connected to a peak hold or tracking circuit (34). The setting value of the voltage (.DELTA.V) is determined to a value exceeding the minute voltage fluctuations, such as back pulses or noises, occasionally contained in the input signal (Vin), by the voltage division in the generating circuit (9). Therefore, in response to the input signal Vin in accordance with the alternate mark inversion, exact data which is not influenced by the minute voltage fluctuation can be detected by the data detector (33).
REFERENCES:
patent: 4027152 (1977-05-01), Brown et al.
patent: 4157509 (1979-06-01), Zielinski
patent: 4584690 (1986-04-01), Cafiero et al.
Gillingham et al., "An ISDN-Interface Transceiver with Analog Timing Recovery", 1988 IEEE International Solid-State Circuits Conference, Digest of Technical Papers, pp. 108-109, Feb. 18, 1988.
"Part C of the Report of the Geneva Meeting (Jul. 8-15, 1986) of Working Party XV III/3 (User-Network Interfaces, Layer 1), As Approved by Study Group XV III".
Kondoh Harufusa
Shimada Hiromi
Bocure Tesfaldet
Mitsubishi Denki & Kabushiki Kaisha
Safourek Benedict V.
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