Multiplex communications – Channel assignment techniques – Arbitration for access to a channel
Reexamination Certificate
2006-11-28
2006-11-28
Rao, Seema S. (Department: 2616)
Multiplex communications
Channel assignment techniques
Arbitration for access to a channel
C370S445000, C370S447000, C370S461000
Reexamination Certificate
active
07142556
ABSTRACT:
A network includes a master station and terminal devices each coupled using a serial data interface to a modem that in turn couples to a twisted pair line. These elements communicate information using a media access control scheme in which a device claims access to the twisted pair line and communicates information on the twisted pair line while the line is claimed. More specifically, a device with information to transmit claims the line by asserting a request to send (RTS) line of its serial data interface, communicates information while the RTS line is asserted, and de-asserts the RTS line upon completing transmission. In addition, the master station and terminal devices implement delays between communications on the line in order to reduce the probability of data collisions.
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Data Terminal ready and Data carrier detect WWW.bigwebmaster.com.
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Baker & Botts L.L.P.
Cisco Technology Inc.
Moore Michael J.
Rao Seema S.
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