Demodulator for binary-phase modulated signals having a variable

Details Demodulator for binary-phase modulated signals having a variable Demodulator for binary-phase modulated signals having a variable

1975-02-28

1976-10-26

Kominski, John

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

307232, 328110, 340167A, H03K 904

Patent

active

039886883

ABSTRACT:
Method and apparatus for demodulating binary-phase modulated signals recorded on a magnetic stripe on a card as the card is manually inserted into a card reader. Magnetic transitions are sensed as the card is read and the time interval between immediately preceeding basic transitions determines the duration of a data sampling pulse which detects the presence or absence of an intermediate transition pulse indicative of two respective logic states. The duration of the data sampling pulse is approximately 75 percent of the preceeding interval between basic transitions to permit tracking succeeding time differences in basic transition intervals of up to approximately 25 percent.

REFERENCES:
patent: 3805175 (1974-04-01), Nassimbene
patent: 3902129 (1975-08-01), Boothroyd

Affiliated with

Also associated with

Rating

Demodulator for binary-phase modulated signals having a variable does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Demodulator for binary-phase modulated signals having a variable, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Demodulator for binary-phase modulated signals having a variable will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-188266