NL7702395A - Modulator for matrix display on TV receiver - uses bit signal conductors for control via gating circuits functioning as multiplier - Google Patents

Modulator for matrix display on TV receiver - uses bit signal conductors for control via gating circuits functioning as multiplier

Info

Publication number
NL7702395A
NL7702395A NL7702395A NL7702395A NL7702395A NL 7702395 A NL7702395 A NL 7702395A NL 7702395 A NL7702395 A NL 7702395A NL 7702395 A NL7702395 A NL 7702395A NL 7702395 A NL7702395 A NL 7702395A
Authority
NL
Netherlands
Prior art keywords
modulator
circuit
matrix display
signal conductors
multiplier
Prior art date
Application number
NL7702395A
Other languages
Dutch (nl)
Original Assignee
Philips Nv
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Priority to NL7702395A priority Critical patent/NL7702395A/en
Publication of NL7702395A publication Critical patent/NL7702395A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/12—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays
    • H04N3/125—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays using gas discharges, e.g. plasma

Abstract

The modulator circuit is for a matrix display unit in a television receiver where the amplitude of the information is represented by a pulse code. The coded signals are fed to the modulator circuit via a number of bit signal conductors. The modulator circuit incorporates a counting circuit which acts as a pulse width modulator and a pulse amplitude modulator. The pulse amplitude modulator is controlled by the signal conductors. The modulator circuit contains a gating circuit which functions as a multiplier. The outputs of the pulse width modulator are connected to the inputs of the gating circuit and the output of the gating circuit is connected to the input of the matrix display unit.
NL7702395A 1977-03-07 1977-03-07 Modulator for matrix display on TV receiver - uses bit signal conductors for control via gating circuits functioning as multiplier NL7702395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7702395A NL7702395A (en) 1977-03-07 1977-03-07 Modulator for matrix display on TV receiver - uses bit signal conductors for control via gating circuits functioning as multiplier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7702395A NL7702395A (en) 1977-03-07 1977-03-07 Modulator for matrix display on TV receiver - uses bit signal conductors for control via gating circuits functioning as multiplier

Publications (1)

Publication Number Publication Date
NL7702395A true NL7702395A (en) 1978-09-11

Family

ID=19828113

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7702395A NL7702395A (en) 1977-03-07 1977-03-07 Modulator for matrix display on TV receiver - uses bit signal conductors for control via gating circuits functioning as multiplier

Country Status (1)

Country Link
NL (1) NL7702395A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017134A1 (en) * 1979-05-04 1980-11-20 Philips Nv MODULATOR CIRCUIT FOR A MATRIX DISPLAY DEVICE
EP0025999A2 (en) * 1979-09-25 1981-04-01 Siemens Aktiengesellschaft Method and circuit arrangement for driving a gas discharge display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017134A1 (en) * 1979-05-04 1980-11-20 Philips Nv MODULATOR CIRCUIT FOR A MATRIX DISPLAY DEVICE
EP0025999A2 (en) * 1979-09-25 1981-04-01 Siemens Aktiengesellschaft Method and circuit arrangement for driving a gas discharge display device
EP0025999A3 (en) * 1979-09-25 1981-11-18 Siemens Aktiengesellschaft Method and circuit arrangement for driving a gas discharge display device

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Legal Events

Date Code Title Description
BV The patent application has lapsed