GB836196A - Improvements relating to receiving apparatus for pulse code signals - Google Patents

Improvements relating to receiving apparatus for pulse code signals

Info

Publication number
GB836196A
GB836196A GB20036/56A GB2003656A GB836196A GB 836196 A GB836196 A GB 836196A GB 20036/56 A GB20036/56 A GB 20036/56A GB 2003656 A GB2003656 A GB 2003656A GB 836196 A GB836196 A GB 836196A
Authority
GB
United Kingdom
Prior art keywords
signal
component
signals
receiving apparatus
pulse code
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
GB20036/56A
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Publication of GB836196A publication Critical patent/GB836196A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H04L25/062—Setting decision thresholds using feedforward techniques only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/04—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback
    • H03K3/05—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback
    • H03K3/06—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/12—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
    • H03K3/13—Bistables with hysteresis, e.g. Schmitt trigger
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding

Abstract

836,196. Code telegraphy. TELEFUNKEN G.m.b.H. June 28, 1956 [June 29, 1955], No. 20036/56. Class 40 (3). In receiving apparatus for pulse code signals, such as teleprinter signals, in which signal evaluation is dependent upon the signal waveform crossing a predetermined threshold and in which the signal is liable to frequency band limitation and loss of the D.C. component, there are provided in a branch of the signal transmission path two oppositely-poled peak rectifiers G1, G2 which function to derive the D.C. component of the signals and means for introducing the component into the signal path in such way as to tend to cause the signal fed to the evaluation device to have equal amplitude excursions about a predetermined value. The means for introducing the D.C. component comprises amplifier V2 having a cathode load K in common with amplifier V1 receiving the incoming signal. Rectifiers Gland G2 have equal loads CR joined by equal resistors R1, R2, from the junction of which the D.C. component is derived. Reference is made to the use of the invention in receivers for frequency-modulated signals.
GB20036/56A 1955-06-29 1956-06-28 Improvements relating to receiving apparatus for pulse code signals Expired GB836196A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE836196X 1955-06-29

Publications (1)

Publication Number Publication Date
GB836196A true GB836196A (en) 1960-06-01

Family

ID=6761104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20036/56A Expired GB836196A (en) 1955-06-29 1956-06-28 Improvements relating to receiving apparatus for pulse code signals

Country Status (1)

Country Link
GB (1) GB836196A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128852A (en) * 1982-09-16 1984-05-02 Tokyo Shibaura Electric Co A data extracting circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128852A (en) * 1982-09-16 1984-05-02 Tokyo Shibaura Electric Co A data extracting circuit
US4577155A (en) * 1982-09-16 1986-03-18 Tokyo Shibaura Denki Kabushiki Kaisha Data extracting circuit

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