GB1470480A - Optical multiplexing by imaging charge transfer device - Google Patents

Optical multiplexing by imaging charge transfer device

Info

Publication number
GB1470480A
GB1470480A GB1892475A GB1892475A GB1470480A GB 1470480 A GB1470480 A GB 1470480A GB 1892475 A GB1892475 A GB 1892475A GB 1892475 A GB1892475 A GB 1892475A GB 1470480 A GB1470480 A GB 1470480A
Authority
GB
United Kingdom
Prior art keywords
ctd
transfer device
light
charge transfer
signal
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
GB1892475A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of GB1470480A publication Critical patent/GB1470480A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/08—Time-division multiplex systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Solid State Image Pick-Up Elements (AREA)

Abstract

1470480 Optical multi-plexing system INTERNATIONAL STANDARD ELECTRIC CORP 6 May 1975 [14 May 1974] 18924/75 Heading G1A [Also in Divisions H3 and H5] In an optical multi-plexing system utilizing an image charge transfer device (CTD) 14, the intensity modulated light signals carried by light fibres 12a, b .... n and emerging from a planar end 13, are imaged on to the light-sensitive areas of a CTD array 14 in a one to one correspondence. A charge transfer device, CTD, comprises a series of semi-conductor regions, Fig. 1 (not shown), which each store a charge proportional to the incident light on it during a given period and the regions are serially "read-out" by way of electrodes associated with each region. Each fibre 12a, b .... n corresponds to an information channel 1, 2, .... n with its associated signal generator G 1 , G 2 .... G n and light emitting diode (LED) or laser diode d 1 d 2 ... dn. The serial electrical output 20 of the CT device 14 is a time division multi-plexed signal (T.D.M.) which is used to directly modulate a further LED or laser diode 21, thereby directing a T.D.M. signal via a single optical fibre 23. The T.D.M. signal is detected at the other end by a high speed avalance photo-diode 24 whose output is amplified and fed to a de-multiplexer 26. The description refers to a series of waveforms Figs. 3A-3E (not shown).
GB1892475A 1974-05-14 1975-05-06 Optical multiplexing by imaging charge transfer device Expired GB1470480A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46991574A 1974-05-14 1974-05-14

Publications (1)

Publication Number Publication Date
GB1470480A true GB1470480A (en) 1977-04-14

Family

ID=23865541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1892475A Expired GB1470480A (en) 1974-05-14 1975-05-06 Optical multiplexing by imaging charge transfer device

Country Status (4)

Country Link
DE (1) DE2520771A1 (en)
ES (1) ES437629A1 (en)
FR (1) FR2271718B3 (en)
GB (1) GB1470480A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT356182B (en) * 1977-06-22 1980-04-10 Siemens Ag Oesterreich MULTI-CHANNEL LF TRANSMISSION SYSTEM

Also Published As

Publication number Publication date
DE2520771A1 (en) 1975-11-27
ES437629A1 (en) 1977-05-16
FR2271718A1 (en) 1975-12-12
FR2271718B3 (en) 1978-11-17

Similar Documents

Publication Publication Date Title
GB1468165A (en) Line data and television transmission
EP0144963B1 (en) Radiation image read-out apparatus
GB1276746A (en) Photoelectric converter
GB1248456A (en) Improvements in or relating to fiber optics elements
DE68925811D1 (en) OPTICAL SHUTTER DEVICE
GB1228277A (en)
GB1470480A (en) Optical multiplexing by imaging charge transfer device
GB1462475A (en) Low light level image pick-up tube arrangement
SE8401912D0 (en) PROCEDURE AND DEVICE FOR SEATING THE POWER OF INCIDENTAL LIGHT
GB1302568A (en)
GB1233145A (en)
US3766392A (en) Light pulse analyzing detector system
ATE20497T1 (en) DEVICE FOR MEASURING PHYSICAL QUANTITIES WITH AN OPTICAL SENSOR.
JPS5611347A (en) Radiation picture information read gain set device
US4654892A (en) Electro-optical system using light modulation
GB1356623A (en) Measurement of visibility
SU602836A1 (en) Radiation introscope registration block
SU842876A1 (en) Information registering device
FR2423937A1 (en) IMPROVEMENTS RELATING TO AN IMAGE FORMATION DEVICE
SU543167A1 (en) Opto-electronic device for transmitting analog signals
SU1001138A1 (en) Photoelectric displacement-to-code converter
GB1475232A (en) Method of measuring the relative spacing of an object from an optical image correlator
SU754448A1 (en) Optronic device for square rooting from optical input signal intensity value
SU1038959A1 (en) Photoelectric displacement converter
SU851770A1 (en) Voltage-to-code converter

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee