GB782332A - Improvements in or relating to carrier-wave telephony transmitters - Google Patents

Improvements in or relating to carrier-wave telephony transmitters

Info

Publication number
GB782332A
GB782332A GB34165/55A GB3416555A GB782332A GB 782332 A GB782332 A GB 782332A GB 34165/55 A GB34165/55 A GB 34165/55A GB 3416555 A GB3416555 A GB 3416555A GB 782332 A GB782332 A GB 782332A
Authority
GB
United Kingdom
Prior art keywords
compression
speech
carrier
band
network
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
GB34165/55A
Other languages
English (en)
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB782332A publication Critical patent/GB782332A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • 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
    • H04B1/62—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 providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmitters (AREA)
GB34165/55A 1954-12-02 1955-11-29 Improvements in or relating to carrier-wave telephony transmitters Expired GB782332A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL782332X 1954-12-02

Publications (1)

Publication Number Publication Date
GB782332A true GB782332A (en) 1957-09-04

Family

ID=19832185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34165/55A Expired GB782332A (en) 1954-12-02 1955-11-29 Improvements in or relating to carrier-wave telephony transmitters

Country Status (5)

Country Link
BE (1) BE543273A (enrdf_load_stackoverflow)
DE (1) DE1015857B (enrdf_load_stackoverflow)
FR (1) FR1144201A (enrdf_load_stackoverflow)
GB (1) GB782332A (enrdf_load_stackoverflow)
NL (2) NL102594C (enrdf_load_stackoverflow)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB702045A (en) * 1950-04-20 1954-01-06 Gen Electric Co Ltd Improvements in or relating to apparatus for effecting amplitude compression and expansion of electric signals and signalling systems including such apparatus
BE513414A (enrdf_load_stackoverflow) * 1951-09-12

Also Published As

Publication number Publication date
BE543273A (enrdf_load_stackoverflow)
NL192874A (enrdf_load_stackoverflow)
FR1144201A (fr) 1957-10-10
DE1015857B (de) 1957-09-19
NL102594C (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
GB782332A (en) Improvements in or relating to carrier-wave telephony transmitters
GB1384927A (en) Amplitude-adjustment circuits for transmitters
GB661554A (en) High frequency pre-emphasis for pulse code modulation
GB929025A (en) Improvements in or relating to signal transmission systems
GB892532A (en) Improvements in communication by electro-magnetic induction
GB974455A (en) Compandor
GB704922A (en) Improvements in or relating to voice frequency signal receivers
GB782737A (en) Magnetic modulator
GB940455A (en) Push-pull modulating or demodulating circuit
GB803682A (en) Improvements in or relating to electrical amplitude modulating circuits
GB171453A (en) Improvements in and relating to modulation systems and the like in radio communication and the like
GB968482A (en) Improvements in or relating to volume expansion circuit arrangements
GB556001A (en) Improvements relating to electrical communication systems
GB451237A (en) Improvements in or relating to carrier wave transmitting apparatus
GB807391A (en) Improvements in single channel carrier frequency telephone communication system
GB796081A (en) Electric pulse communication system
GB797055A (en) Improvements in and relating to electrical communication systems
GB890640A (en) Improvements in range and angular coordinates finder
GB800878A (en) Improvements in or relating to modulating and demodulating apparatus for use in duplex electric carrier systems
GB812588A (en) Improvements in or relating to transmission measuring sets for electric communication circuits
GB874701A (en) Improvements in or relating to communication systems employing compandors
GB935855A (en) Improvements in or relating to transmitting apparatus
GB968481A (en) Improvements in or relating to circuit arrangements for volume compression
GB733976A (en) Improvements in or relating to demodulators for electric carrier current communication systems
GB650015A (en) Improvements in or relating to modulators for carrier telegraph systems