GB1455262A - Digital-to-analogue converter - Google Patents

Digital-to-analogue converter

Info

Publication number
GB1455262A
GB1455262A GB2572173A GB2572173A GB1455262A GB 1455262 A GB1455262 A GB 1455262A GB 2572173 A GB2572173 A GB 2572173A GB 2572173 A GB2572173 A GB 2572173A GB 1455262 A GB1455262 A GB 1455262A
Authority
GB
United Kingdom
Prior art keywords
digital
flip
pulses
chopped
flop
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
GB2572173A
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.)
Micro Consultants Ltd
Original Assignee
Micro Consultants Ltd
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 Micro Consultants Ltd filed Critical Micro Consultants Ltd
Priority to GB2572173A priority Critical patent/GB1455262A/en
Publication of GB1455262A publication Critical patent/GB1455262A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/86—Digital/analogue converters with intermediate conversion to frequency of pulses

Abstract

1455262 Digital-to-analogue conversion MICRO CONSULTANTS Ltd 22 April 1974 [30 May 1973] 25721/73 Heading H3H The output of a digital-to-analogue converter is in the form of pulses, Fig. 3, each of an amplitude corresponding to the value of the digital input and of a duration not more than 0À7 times the period between pulses. In a video system this replaces frequency-dependent amplitude loss by fixed amplitude loss which can be compensated by amplification. Preferably, the markspace ratio is between 0À1 and 0À7. In Fig. 9, the output of the converter 40 is chopped by F.E.T. switches 31, 32 controlled by delays 43, 46 and a flip-flop 45. Switches 31, 32 may be diodes or optical; one of them may be replaced by a resistor. The level between pulses need not be earth, Fig. 10 (not shown). In another form, Fig. 6 (not shown), the digital input is chopped by being stored in a register (10) of flip-flops each flip-flop being reset before the arrival of the next sampling pulse.
GB2572173A 1973-05-30 1973-05-30 Digital-to-analogue converter Expired GB1455262A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2572173A GB1455262A (en) 1973-05-30 1973-05-30 Digital-to-analogue converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2572173A GB1455262A (en) 1973-05-30 1973-05-30 Digital-to-analogue converter

Publications (1)

Publication Number Publication Date
GB1455262A true GB1455262A (en) 1976-11-10

Family

ID=10232216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2572173A Expired GB1455262A (en) 1973-05-30 1973-05-30 Digital-to-analogue converter

Country Status (1)

Country Link
GB (1) GB1455262A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3618748A1 (en) * 1985-06-17 1986-12-18 Minnesota Mining And Mfg. Co., Saint Paul, Minn. ELECTRIC STIMULATOR FOR BIOLOGICAL TISSUE

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3618748A1 (en) * 1985-06-17 1986-12-18 Minnesota Mining And Mfg. Co., Saint Paul, Minn. ELECTRIC STIMULATOR FOR BIOLOGICAL TISSUE
GB2177305A (en) * 1985-06-17 1987-01-21 Minnesota Mining & Mfg Electrical stimulator for biological tissue utilizing linear current output circuit
GB2177305B (en) * 1985-06-17 1989-07-12 Minnesota Mining & Mfg Electrical stimulator for biological tissue utilizing linear current output circuit

Similar Documents

Publication Publication Date Title
GB855609A (en) Improvements in or relating to pulse code modulation encoders
GB1257066A (en)
GB1455262A (en) Digital-to-analogue converter
CA958104A (en) Integrated switching and transmission network for pulse code modulated signals
KR930017301A (en) Pulse width modulation circuit
US3886541A (en) Exponential ramp a/d converter
GB940507A (en) Improvements in or relating to pulse modulation systems
GB947430A (en) Improvements in or relating to pulse-code modulation transmission systems
GB997715A (en) Pulse modulation system for television signals
US3911427A (en) Digital-to-analog converter
ES429445A1 (en) Code translation arrangement
GB1384576A (en) Analogue-to-digital convertors
SU902249A1 (en) Time interval-to-digital code converter
SU1394416A1 (en) Pulse driver
SU373895A1 (en) YSESOYUNNAYA mtt-immEm
SU1406794A1 (en) Pulse recurrence rate to d.c. current or voltage converter
GB1060836A (en) Improvements in or relating to electrical circuits
ES457353A1 (en) Controlling asynchronous conversion between analog and digital parameters
SU1259479A1 (en) Digital pulse-width modulator
GB1327283A (en) Data handling employing time modulation
SU1023649A1 (en) Digital-analogue converter
SU577687A1 (en) Pulse signal regenerator
SU591859A1 (en) Device for module three remnant forming
GB1224921A (en) A cascaded coder
JPS5665523A (en) Signal conversion device

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee