GB2001218B - Shift keyed systems - Google Patents

Shift keyed systems

Info

Publication number
GB2001218B
GB2001218B GB7831743A GB7831743A GB2001218B GB 2001218 B GB2001218 B GB 2001218B GB 7831743 A GB7831743 A GB 7831743A GB 7831743 A GB7831743 A GB 7831743A GB 2001218 B GB2001218 B GB 2001218B
Authority
GB
United Kingdom
Prior art keywords
shift keyed
keyed systems
systems
shift
keyed
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
GB7831743A
Other versions
GB2001218A (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.)
Post Office
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Priority to GB7831743A priority Critical patent/GB2001218B/en
Publication of GB2001218A publication Critical patent/GB2001218A/en
Application granted granted Critical
Publication of GB2001218B publication Critical patent/GB2001218B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB7831743A 1977-05-12 1978-07-31 Shift keyed systems Expired GB2001218B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7831743A GB2001218B (en) 1977-05-12 1978-07-31 Shift keyed systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2008477 1977-05-12
GB7831743A GB2001218B (en) 1977-05-12 1978-07-31 Shift keyed systems

Publications (2)

Publication Number Publication Date
GB2001218A GB2001218A (en) 1979-01-24
GB2001218B true GB2001218B (en) 1982-01-20

Family

ID=26254431

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7831743A Expired GB2001218B (en) 1977-05-12 1978-07-31 Shift keyed systems

Country Status (1)

Country Link
GB (1) GB2001218B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4320345A (en) * 1980-04-28 1982-03-16 Sangamo Weston, Inc. Adaptive differential PSK demodulator
US4461014A (en) * 1980-09-23 1984-07-17 Mitsubishi Denki Kabushiki Kaisha Carrier regenerating circuit
JPS5980048A (en) * 1982-10-30 1984-05-09 Nec Corp Automatic phase control circuit
GB8414623D0 (en) * 1984-06-08 1984-07-11 Indep Broadcasting Authority Receiver techniques
GB2172158B (en) * 1985-03-07 1988-12-29 Stc Plc Zero-if radio receiver
GB2202715B (en) * 1987-03-24 1991-03-20 Dr Frank Robert Connor Minimum relative shift keying

Also Published As

Publication number Publication date
GB2001218A (en) 1979-01-24

Similar Documents

Publication Publication Date Title
GB2011577B (en) Transmission systems
GB2002068B (en) Blocked transmission
GB2007775B (en) Windturbine system
JPS5447128A (en) Selector
GB2001401B (en) Clutches
GB2008798B (en) Refrigeration systems
JPS5439752A (en) Clutch
GB2008508B (en) Hydraulic systems
GB1540570A (en) Radio transmission systems
JPS5493744A (en) Clutch
GB2008209B (en) Clutches
JPS5493575A (en) Shifter
JPS53148653A (en) Oneesided clutch
GB2000609B (en) Control systems
JPS5439753A (en) Clutch
GB2000331A (en) Control systems
GB2001218B (en) Shift keyed systems
GB1539197A (en) Transmissions
GB1540857A (en) Transmission systems
GB2001034B (en) Marine rising systems
GB2013810B (en) Couplings
JPS5433937A (en) One way clutch
JPS53122046A (en) Hydrauliccpowered clutch
JPS5436441A (en) Sprug clutch
JPS5447130A (en) Selector

Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee