Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Patent
1992-04-16
1994-04-26
Chan, Wing F.
Telephonic communications
Telephone line or system combined with diverse electrical...
Having transmission of a digital message signal over a...
379216, 375 8, H04M 1100
Patent
active
053074025
ABSTRACT:
Several techniques for reducing the amount of time between initiation of a terminal request through a dial-up telephone line and the actual initiation of transactions between the terminal and a host computer. By using a ring down or hotline circuit configuration dialing and call setup time can be saved. By using cut through techniques to gain direct access to the IXC switch, time can also be saved over conventional techniques. With the ring down use or cut through procedures no login procedure is necessary to ensure secure access to the host computer. The ring generation period is shortened to just an interval sufficient to allow the host modem to recognize the ring, with the ring indication period also begin shortened. The modems can be set to fixed baud rates, but in a more preferred embodiment the terminal modem transmits the originate carrier prior to the host modem picking up the line. The host modem then senses the originate carrier quickly and provides the proper answer carrier. If an originate carrier of an improper baud rate is provided, speed negotiation commences immediately. If no originate carrier is provided within a given time, a fall back to conventional techniques is used. The silent interval prior to operation of the host modem is removed. After the carriers are both provided, normal connection to the host computer is made and the transaction completed.
REFERENCES:
patent: 3783194 (1974-06-01), Vilips et al.
patent: 4606044 (1986-08-01), Kudo
patent: 4669090 (1987-05-01), Betts et al.
patent: 4796292 (1989-01-01), Thomas
patent: 4894847 (1990-01-01), Tjahjadi et al.
patent: 4939767 (1990-07-01), Saito et al.
patent: 5025469 (1991-06-01), Bingham
patent: 5144651 (1992-09-01), Cooper
Tanzilla, K., "Six Second Verification," Communication News, Jun., 1990, p. 49.
Chan Wing F.
Exxon Research and Engineering Company
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