Elektronischer Taktgeber mit automatischer Phasenkorrektur fuer Empfaenger von fernuebertragenen Datenimpulsen

1,137,769. Automatic phase control systems. INTERNATIONAL BUSINESS MACHINES CORP. 1 July, 1966 [13 July, 1965], No. 29594/66. Heading H3A. At a data receiving station a generator 10 feeds a chain of bi-stable devices 1-5 to produce clock pulses which are compared in phase with input signals, error s...

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Bibliographic Details
Main Authors DEAN MONTGOMERY, ORVILLE, EARL BOWLING, RAYMOND, JAMES ROCHE, THOMAS
Format Patent
LanguageGerman
Published 02.01.1969
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:1,137,769. Automatic phase control systems. INTERNATIONAL BUSINESS MACHINES CORP. 1 July, 1966 [13 July, 1965], No. 29594/66. Heading H3A. At a data receiving station a generator 10 feeds a chain of bi-stable devices 1-5 to produce clock pulses which are compared in phase with input signals, error signals causing adjustment of the dividing chain to restore synchronism. If an input pulse on line 27 occurs when trigger 4 is OFF, the control trigger 23 is turned ON and subsequently an additional pulse is fed to the divider chain via gates 26 and 33. If an input pulse on line 27 occurs when trigger 4 is ON, the control trigger 19 is turned ON and a subsequent pulse through gate 25 and inverter 35 blocks gate 36 thereby blocking one drive pulse in the divider chain. The gates 16 and 20 with inputs as shown open the respective gates 18 and 22 for 15/32 of a cycle each, the remaining 2/32 of a cycle being centred on a null point.
Bibliography:Application Number: DE1966J031303