Multiplex communications – Duplex – Communication over free space
Reexamination Certificate
2006-09-26
2006-09-26
Hsu, Alpus H. (Department: 2616)
Multiplex communications
Duplex
Communication over free space
C370S282000, C370S522000, C358S001130, C358S001150, C375S220000, C709S227000
Reexamination Certificate
active
07113490
ABSTRACT:
A DCE sends a first command to a DTE if data transmission from the DCE has not ended at a predetermined timing after the end of data transfer from the DTE to the DCE. The DTE sends a second command to the DCE at an arbitrary timing upon reception of the first command. Upon reception of the second command, the DCE sends to the DTE the first command if data transmission has not ended, or a third command if data transmission has ended. The DTE and DCE execute a post-data transmission procedure after they exchange the third command.
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Hsu Alpus H.
Toshiba Tec Kabushiki Kaisha
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