JPS54162592A - Signal processing circuit - Google Patents

Signal processing circuit

Info

Publication number
JPS54162592A
JPS54162592A JP7114778A JP7114778A JPS54162592A JP S54162592 A JPS54162592 A JP S54162592A JP 7114778 A JP7114778 A JP 7114778A JP 7114778 A JP7114778 A JP 7114778A JP S54162592 A JPS54162592 A JP S54162592A
Authority
JP
Japan
Prior art keywords
delta modulators
signal
composite output
fetched
clocks
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
JP7114778A
Other languages
Japanese (ja)
Inventor
Kunikatsu Yoshii
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7114778A priority Critical patent/JPS54162592A/en
Publication of JPS54162592A publication Critical patent/JPS54162592A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:To accurately extract required signal by inputting the signal accompanying noise to plural parallel-connected delta modulators, applying the clocks tuned by deviating respective timings to all the delta modulators and combining all the resultant outputs. CONSTITUTION:The signal accompanying noise is inputted to the plural parallel- connected delta modulators 11, 12, and the clocks synchronized by deviating respective timings to thse delta modulators are generated 15, 16. The composite output having combined 17 the resultant outputs is used as a base. This composite output is straightly fetched out or the desired signal is fetched by taking the difference from the original signals, whereby the effect of the cutoff frequency of a low- pass filter 18 may be reduced and the desired signal may be accurately extracted.
JP7114778A 1978-06-13 1978-06-13 Signal processing circuit Pending JPS54162592A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7114778A JPS54162592A (en) 1978-06-13 1978-06-13 Signal processing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7114778A JPS54162592A (en) 1978-06-13 1978-06-13 Signal processing circuit

Publications (1)

Publication Number Publication Date
JPS54162592A true JPS54162592A (en) 1979-12-24

Family

ID=13452186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7114778A Pending JPS54162592A (en) 1978-06-13 1978-06-13 Signal processing circuit

Country Status (1)

Country Link
JP (1) JPS54162592A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5835407A (en) * 1981-08-28 1983-03-02 Dainippon Printing Co Ltd Signal processor for checking pattern defect
JPS5835408A (en) * 1981-08-28 1983-03-02 Dainippon Printing Co Ltd Signal processor for checking pattern defect

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311A (en) * 1976-06-24 1978-01-05 Anritsu Corp S/n ratio enhancing unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311A (en) * 1976-06-24 1978-01-05 Anritsu Corp S/n ratio enhancing unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5835407A (en) * 1981-08-28 1983-03-02 Dainippon Printing Co Ltd Signal processor for checking pattern defect
JPS5835408A (en) * 1981-08-28 1983-03-02 Dainippon Printing Co Ltd Signal processor for checking pattern defect

Similar Documents

Publication Publication Date Title
JPS561698A (en) Signal converting circuit
JPS5428520A (en) Method and apparatus for sampling frequency conversion
JPS54162592A (en) Signal processing circuit
ES445187A1 (en) High power low loss nonresonant filter system
JPS51144679A (en) Phase discrimination circuit
JPS558658A (en) Signal delay circuit
JPS5341967A (en) Wave form shaping circuit
JPS612959B2 (en)
DE3783786D1 (en) CIRCUIT FOR DIGITAL COMPENSATION OF A DETERMINED NOISE SIGNAL.
FR2436397A2 (en) Interference component suppression circuit - processes test signals in nonlinear circuit with automatically adjustable dead zone
JPS51117026A (en) Electronic musical instrument
JPS562768A (en) Angle modulation signal converting circuit
JPS5222424A (en) Noise remover of video signals
JPS545318A (en) Rejection system of interferring distortion caused in demodulation signal due to interference between fm signals
JPS5333003A (en) Fundamental-period discriminating method of composite sound signal
JPS5494815A (en) Noise silencer circuit
JPS5571361A (en) Superimposing system
JPS53132910A (en) Extraction system of fundamental frequency of sound signal
JPS5435720A (en) Sound source circuit
JPS5673943A (en) Phase adjusting circuit
JPS5571315A (en) Limit cycle reduction system of digital filter
JPS51128550A (en) Supplementation method for primary output convertion of trans-ducer co nvertion of transducer
FR2307419A1 (en) Processing circuit for video colour signals - comprises frequency selective network signal limiting network and adder stage
JPS5679503A (en) Fluctuation noize generator
JPS6441365A (en) Digital signal generator