AU2938257A - Circuit arrangement for keeping the black level ofa television signal constant, independent ofthe chosen contrast, in television receivers withthe aid ofa switching diode - Google Patents

Circuit arrangement for keeping the black level ofa television signal constant, independent ofthe chosen contrast, in television receivers withthe aid ofa switching diode

Info

Publication number
AU2938257A
AU2938257A AU29382/57A AU2938257A AU2938257A AU 2938257 A AU2938257 A AU 2938257A AU 29382/57 A AU29382/57 A AU 29382/57A AU 2938257 A AU2938257 A AU 2938257A AU 2938257 A AU2938257 A AU 2938257A
Authority
AU
Australia
Prior art keywords
ofa
keeping
circuit arrangement
black level
switching diode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU29382/57A
Other versions
AU222858B2 (en
Inventor
Wolf Kurt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Services Ltd
Original Assignee
Standard Telephone and Cables Pty Ltd
Filing date
Publication date
Application filed by Standard Telephone and Cables Pty Ltd filed Critical Standard Telephone and Cables Pty Ltd
Application granted granted Critical
Publication of AU2938257A publication Critical patent/AU2938257A/en
Publication of AU222858B2 publication Critical patent/AU222858B2/en
Expired legal-status Critical Current

Links

AU29382/57A 1957-07-10 Circuit arrangement for keeping the black level ofa television signal constant, independent ofthe chosen contrast, in television receivers withthe aid ofa switching diode Expired AU222858B2 (en)

Publications (2)

Publication Number Publication Date
AU2938257A true AU2938257A (en) 1958-01-16
AU222858B2 AU222858B2 (en) 1958-01-16

Family

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