Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L25/00—Baseband systems
  • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
  • H04L25/40—Transmitting circuits; Receiving circuits
  • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
  • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
• • 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
  • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
  • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
  • H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
  • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
  • H04N1/41—Bandwidth or redundancy reduction
  • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
  • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
  • H04N1/4135—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which a baseband signal showing more than two values or a continuously varying baseband signal is transmitted or recorded

Landscapes

• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Physics & Mathematics (AREA)
• Spectroscopy & Molecular Physics (AREA)
• Computer Networks & Wireless Communication (AREA)
• Power Engineering (AREA)
• Multimedia (AREA)
• Dc Digital Transmission (AREA)
• Compression, Expansion, Code Conversion, And Decoders (AREA)
• Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=9084310

Family Applications (1)

Country Status (9)

Families Citing this family (1)

Family Cites Families (3)

• 0
  • BE BE789644D patent/BE789644A/xx not_active IP Right Cessation
• 1971
  • 1971-10-13 FR FR7136797A patent/FR2161744B1/fr not_active Expired
• 1972
  • 1972-10-09 LU LU66254D patent/LU66254A1/xx unknown
  • 1972-10-09 NL NL7213636A patent/NL156288B/xx not_active IP Right Cessation
  • 1972-10-10 SE SE1305272A patent/SE387498B/xx unknown
  • 1972-10-11 DE DE19722249819 patent/DE2249819C2/de not_active Expired
  • 1972-10-12 IT IT7021272A patent/IT975237B/it active
  • 1972-10-12 CA CA154,147A patent/CA971666A/en not_active Expired
  • 1972-10-13 GB GB4734272A patent/GB1357837A/en not_active Expired

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