Method and apparatus for wireless RS232 communication

Details Method and apparatus for wireless RS232 communication Method and apparatus for wireless RS232 communication

1997-10-29

2000-07-18

Chin, Stephen

Pulse or digital communications

Transceivers

375222, 370349, 370451, 370535, H04B 138

Patent

active

060917644

ABSTRACT:
A controller circuit (107) between a transceiver (104) and an RS232communication port (103) provides wireless communication to a remote unit and includes a transmitting and receiving mode indicator (503), a first delay circuit (506) for delaying a packet of data (501) before being transmitted, a timer (502) counting a period of time during which delaying termination of transmitting mode following a last data bit of the packet of data (501). Further, a receive signal detector (504) produces a carrier detect signal (521) and its delayed version (525) through a second delay (522) when a data packet (520) is received from the transceiver (104), first and second AND gates (523, 528) and a third delay circuit (526) receive signals (525and 520) to produce a reformatted received data packet (529) compatible to the RS232format for input to the RS232communication port (103).

REFERENCES:
patent: 4663755 (1987-05-01), Lewis
patent: 4665519 (1987-05-01), Kirchner et al.
patent: 4667323 (1987-05-01), Engdahl et al.
patent: 5815667 (1998-09-01), Chien et al.

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