Pulse or digital communications – Repeaters – Testing
Patent
1985-01-30
1986-10-14
Heyman, John S.
Pulse or digital communications
Repeaters
Testing
375104, 329106, 328112, 328165, H04L 100
Patent
active
046176772
ABSTRACT:
A data signal reading device for reading an input data signal, such as may be received from an infrared remote control device, wherein the amount of error contained in the output signal is reduced. The input signal is subjected to level decision while being sampled with a clock pulse signal having a predetermined period to provide decision outputs. A first counter counts the number of occurrences of one level and responds to the decision output, while a second counter counts the number of occurrences of the other level. The second counter is initialized when it is determined that the decision output is of the one level. The counting operations of the first and second counters are suspended for a period of time slightly longer than the shorter of the two different durations when the content of the second counter reaches a predetermined value. The output state is determined according to the content of the first counter present when the second counter reaches the predetermined value.
REFERENCES:
patent: 3366930 (1968-01-01), Bennett et al.
patent: 3879665 (1975-04-01), Carlow et al.
patent: 4514854 (1985-04-01), Ashida
Heyman John S.
Pioneer Electronic Corporation
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