H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/02 (2006.01) H04J 3/06 (2006.01) H04L 5/14 (2006.01)
Patent
CA 2097144
Abstract of the Disclosure: In a duplex transmission network comprising first and second transmission lines, first and second pointer renewing units process first and second transmission line frame signals from the first and the second transmission lines into first and second device frame signals. Each transmission line frame signal comprises a virtual container (VC) and an original pointer designating a location of the VC in a transmission line frame. Each device frame signal comprises the VC and a renewed pointer designating another location of the VC in a device frame. In each pointer renewing unit, a pointer comparator (109) compares the renewed pointers of the first and the second device frame signals with each other and produces a subsidiary stuff control signal (215). A selector (108) selects one of a primary stuff request signal (211) and the subsidiary stuff control signal as a selected stuff control signal used in a read controller (107). A write controller (105) controls writing of the VC of the transmission line signal in a buffer memory in response to a selection signal (216) by supplying a write address signal to the memory. The read controller controls reading of the VC from the memory in response to the selected stuff control signal by supplying a read address signal to the memory.
Corporation Nec
Smart & Biggar
LandOfFree
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