Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B3/00—Line transmission systems
  • H04B3/02—Details
  • H04B3/04—Control of transmission; Equalising
  • H04B3/10—Control of transmission; Equalising by pilot signal
• • G—PHYSICS
  • G10—MUSICAL INSTRUMENTS; ACOUSTICS
  • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
  • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
  • G10L21/04—Time compression or expansion
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B21/00—Head arrangements not specific to the method of recording or reproducing
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03K—PULSE TECHNIQUE
  • H03K4/00—Generating pulses having essentially a finite slope or stepped portions
  • H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
  • H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
  • H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
  • H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
  • H03K4/501—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator
  • H03K4/502—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator the capacitor being charged from a constant-current source
• • 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
  • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
  • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
  • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
  • H04B1/662—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a time/frequency relationship, e.g. time compression or expansion

Landscapes

• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Computer Networks & Wireless Communication (AREA)
• Power Engineering (AREA)
• Human Computer Interaction (AREA)
• Quality & Reliability (AREA)
• Health & Medical Sciences (AREA)
• Audiology, Speech & Language Pathology (AREA)
• Computational Linguistics (AREA)
• Physics & Mathematics (AREA)
• Acoustics & Sound (AREA)
• Multimedia (AREA)
• Signal Processing For Digital Recording And Reproducing (AREA)
• Compression, Expansion, Code Conversion, And Decoders (AREA)
• Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
• Analogue/Digital Conversion (AREA)
• Electrophonic Musical Instruments (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=26867208

Family Applications (1)

Country Status (19)

Families Citing this family (4)

Family Cites Families (8)

• 0
  • BE BE787492D patent/BE787492A/xx not_active IP Right Cessation
• 1972
  • 1972-07-31 PL PL1972157037A patent/PL95183B1/pl unknown
  • 1972-08-03 DE DE2238136A patent/DE2238136C2/de not_active Expired
  • 1972-08-07 NL NLAANVRAGE7210770,A patent/NL172200C/xx active
  • 1972-08-07 IL IL40057A patent/IL40057A/xx unknown
  • 1972-08-07 CS CS725500A patent/CS195258B2/cs unknown
  • 1972-08-11 FR FR7229026A patent/FR2150067A5/fr not_active Expired
  • 1972-08-11 DD DD165020A patent/DD100347A5/xx unknown
  • 1972-08-11 CH CH1195972A patent/CH564815A5/xx not_active IP Right Cessation
  • 1972-08-11 CA CA149,248A patent/CA965014A/en not_active Expired
  • 1972-08-11 AR AR243541A patent/AR201269A1/es active
  • 1972-08-11 ES ES405791A patent/ES405791A1/es not_active Expired
  • 1972-08-11 GB GB3755372A patent/GB1406831A/en not_active Expired
  • 1972-08-11 SE SE7210455A patent/SE383934B/xx unknown
  • 1972-08-11 PH PH13796*UA patent/PH9570A/en unknown
  • 1972-08-11 LU LU65886A patent/LU65886A1/xx unknown
  • 1972-08-12 IT IT52176/72A patent/IT962099B/it active
  • 1972-08-14 JP JP7281375A patent/JPS551596B2/ja not_active Expired
  • 1972-08-14 AT AT699872A patent/AT354126B/de not_active IP Right Cessation

Also Published As

Similar Documents