JPS5460509A - Digtal transmission device for analog quantity - Google Patents

Digtal transmission device for analog quantity

Info

Publication number
JPS5460509A
JPS5460509A JP12706077A JP12706077A JPS5460509A JP S5460509 A JPS5460509 A JP S5460509A JP 12706077 A JP12706077 A JP 12706077A JP 12706077 A JP12706077 A JP 12706077A JP S5460509 A JPS5460509 A JP S5460509A
Authority
JP
Japan
Prior art keywords
analog
analog quantity
duration
modulation signal
pulse train
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.)
Pending
Application number
JP12706077A
Other languages
Japanese (ja)
Inventor
Tomohiro Takigawa
Hiroshi Suzuki
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP12706077A priority Critical patent/JPS5460509A/en
Priority to DE19782845598 priority patent/DE2845598B2/en
Publication of JPS5460509A publication Critical patent/JPS5460509A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal
    • H03K9/08—Demodulating pulses which have been modulated with a continuously-variable signal of duration- or width-mudulated pulses or of duty-cycle modulated pulses
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval

Abstract

PURPOSE: To ensure the quick and accurate transmission for the analog information by transmitting the pulse train whose duration and frequency are vaired according to the level polarity of the analog quantity in the form of the modulation signal and detecting the average value of the pulse train duration at the reception side to obtain the original analog quantity.
CONSTITUTION: Analog voltage VIN to be transmittted is applied to one input terminal of adder/integrator 1, and the fixed voltage -VR or +VR is applied to the other input terminal through switch S1 or S2 which is opened and closed selectively. And the output of circuit 1 is supplied to the comparator, and the pulse train whose duration and frequency are varied according to the level polarity of the analog signal is transmitted via luminous element D in the form of the modulation signal. While at the reception side, the modulation signal is received through photo detector T, and input -VR and +VR of integrator 3 are switched complementarily via output V2 and the reverse output passed through inverter INV2. Then the average value is detected for the pulse duration through integral adder 4 and 5 to detect the original analog quantity. Thus, the quick and accurate transmission is ensured for the analog information
COPYRIGHT: (C)1979,JPO&Japio
JP12706077A 1977-10-22 1977-10-22 Digtal transmission device for analog quantity Pending JPS5460509A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP12706077A JPS5460509A (en) 1977-10-22 1977-10-22 Digtal transmission device for analog quantity
DE19782845598 DE2845598B2 (en) 1977-10-22 1978-10-19 Method and circuit arrangement for the pulsed transmission of analog signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12706077A JPS5460509A (en) 1977-10-22 1977-10-22 Digtal transmission device for analog quantity

Publications (1)

Publication Number Publication Date
JPS5460509A true JPS5460509A (en) 1979-05-16

Family

ID=14950590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12706077A Pending JPS5460509A (en) 1977-10-22 1977-10-22 Digtal transmission device for analog quantity

Country Status (2)

Country Link
JP (1) JPS5460509A (en)
DE (1) DE2845598B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60118091A (en) * 1983-11-26 1985-06-25 Matsushita Electric Ind Co Ltd Controller of motor
JP2009073619A (en) * 2007-09-20 2009-04-09 Nec Tokin Corp Reel

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3213365A1 (en) * 1982-04-10 1983-10-20 Richard Hirschmann Radiotechnisches Werk, 7300 Esslingen METHOD AND DEVICE FOR THE OPTICAL TRANSMISSION OF ELECTRICAL SIGNALS WITH POSITIVE AND NEGATIVE VOLTAGE VALUES
SE432859B (en) * 1982-10-22 1984-04-16 Ericsson Telefon Ab L M PROCEDURE TO TRANSFER AN EXTRA INFORMATION CHANNEL OVER A TRANSMISSION MEDIUM
DE3424052A1 (en) * 1984-06-29 1986-01-09 Siemens AG, 1000 Berlin und 8000 München SIGNALER
DE3543280C2 (en) * 1984-12-21 1994-07-07 Vaillant Joh Gmbh & Co Circuit for generating a pulse pause signal which is linearly dependent on a slowly changing input signal
EP0269758B1 (en) * 1986-12-01 1991-01-23 Deutsche ITT Industries GmbH Current change-over switch
DE19643502B4 (en) 1996-10-21 2007-05-16 Bosch Gmbh Robert Method for decoding a digital signal, bus system and peripheral device therefor
US6295272B1 (en) 1998-04-20 2001-09-25 Gadzoox Networks, Inc. Subchannel modulation scheme for carrying management and control data outside the regular data channel
FR2791198B1 (en) * 1999-03-16 2001-06-15 St Microelectronics Sa METHOD AND DEVICE FOR GENERATING A PULSE SIGNAL WITH PULSES OF MODULAR WIDTH

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60118091A (en) * 1983-11-26 1985-06-25 Matsushita Electric Ind Co Ltd Controller of motor
JP2009073619A (en) * 2007-09-20 2009-04-09 Nec Tokin Corp Reel

Also Published As

Publication number Publication date
DE2845598A1 (en) 1979-04-26
DE2845598B2 (en) 1980-10-23

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