Asynchronous serial communications apparatus with variable lengt

Details Asynchronous serial communications apparatus with variable lengt Asynchronous serial communications apparatus with variable lengt

1986-11-10

1990-04-03

Shaw, Gareth D.

Boots, shoes, and leggings

364919, 3649394, 375117, G06F 506

Patent

active

049146181

ABSTRACT:
A method and apparatus is disclosed which provides for controlling a rate of transmission of information over a serial communications channel. Each unit of information transmitted has associated therewith a start bit and a plurality of stop bits. The number of stop bits is adjusted to provide a desired effective channel transmission rate. In an alternate embodiment the communication channel is held in a selected state subsequent to the transmission of each unit of information for a selected period of time prior to the transmission of a following unit of information. Consequently, while the actual rate of transmission of information over a communication channel remains constant, an effective rate of transmission may be varied in accordance with a desired rate of transmission.

REFERENCES:
patent: 4210777 (1980-07-01), Bowerman et al.
patent: 4509164 (1985-04-01), Mouftah
patent: 4607345 (1986-08-01), Mehta
patent: 4642810 (1987-02-01), Picard

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