Singapore Teleview

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Singapore Teleview or known as Camp-Camp View or Ke Pik was a Singaporean

GEC Marconi in the UK to develop a photo-videotext public service. Selected engineers were sent to the UK to work within the Marconi development team stationed at Fleet, Hampshire, England. Singapore was the first country in the world to launch an interactive information service to the public which included photographic images. The service started trials during late 1987 using specifically designed terminals. Controlled trials had been conducted since 1987 as the infrastructure was installed and trialed successfully.[4]
It finally went into full public service in 1991.

Subscribers connected to the Teleview, now-defunct, service by

v.22bis) and then later via 9600-14400 kbit/s modems.[5] Pages with photographic images were sent to the terminal by Full Field Teletext transmissions from dedicated data inserters/UHF TV transmitters
.

Subscribers initially paid no time based usage fee for this service. However, later charges, on top of telephone line charges were levied.

A later development from Teleview provided an interfaced connection to the Internet, subscribers were given access to the Internet via a text-only terminal; email was accessed by Pine, and webpages were viewed by Lynx. Subsequently, Teleview was rendered obsolete, and SingNet started offering to the Internet via Serial Line Internet Protocol/Point-to-Point Protocol (SLIP/PPP) over modem.

System

The information storage and delivery system was based upon GPT4190 computers coupled to dial in modem for public to access and via microwave link to a UHF TV transmitter fitted with Full Field Teletext inserters. Transmission of lower level protocol data and user terminal management control was via telephone V22 modem. High level data such as geometric and photographic displays sent exclusively by full field teletext with interchange control and handshaking via V22 modem.

The service profile is based upon extensions to the existing CEPT Videotext Services Recommendations T/CD 6-1, as defined in Teleview Videotext Service Profile and Data Standard Ref; 7630/DS/1 1987.

Terminal

The terminal was based upon two

TMS 7000,[6] acted as control for the full field teletext, RF tuning and packet decoding for 8 bit data transfer to the main processor, while a Micronas MAS2122 Modem chipset
handled the telephone interface.

RF Tuning was achieved by

TMS 77C82[8]
mask programmed version).

Furthermore, the main processor operated as a computer running

qwerty keyboard with additional keys to select videotext, teletext or PC
modes.

See also

References

  1. ISSN 0953-5683
    .
  2. ^ "The interactive island-Singapore's Teleview system". 1991.
  3. ISSN 1059-1028
    . Retrieved 2022-11-30.
  4. ^ Chang, William; Raman, K. S.; Upchurch, E. T. (1990). "Performance model of the Teleview system". Scopus.
  5. ^ "Singapore lacking in tech inventors". ZDNET. Retrieved 2022-11-30.
  6. ^ "Texas Instruments 7000 microcontroller family". www.cpu-world.com. Retrieved 2022-11-30.
  7. ^ TMS 3556 Video Display Processor (PDF). Texas Instruments.
  8. ^ "TMS77C82 Datasheet pdf - 8-BIT MICROCONTROLLER - Texas Instruments". www.datasheetcatalog.com. Retrieved 2022-11-30.
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