公开(公告)号：JPH1065515A

公开(公告)日：1998-03-06

申请号：JP13081697

申请日：1997-05-21

Applicant: IBM

Inventor： EMEIGH ROGER D ,  MIKOS JAMES F ,  DAVID LAURENCE PEACE ,  STROM JAMES DAVID

IPC: H03K19/003 ,  H03K19/0175 ,  H04L25/02 ,  H04L12/28

Abstract: PROBLEM TO BE SOLVED: To provide a signal transmission system by matching an operation parameter of lots of output drivers stably so as to provide signal transmission controlled with high reliability. SOLUTION: A plurality of differential output drivers 30 are connected to a reference current generator 20, each output driver 30 receives almost the same copy of a reference current signal to control one operating parameter or over of each output driver 30. Lots of copies of the reference current signal are generated in the same area of an integrated circuit chip 11 thereby producing fluctuation of the respective copies of the reference current signal to minimize the process fluctuation in the chip. Each output driver 30 has a differential pair transistors (TRs) connected to ground or a power supply via a common mode resistor and the common mode resistor controls a common mode component of the driver output independently of an output voltage swing.

公开(公告)号：JP2003188914A

公开(公告)日：2003-07-04

申请号：JP2002318107

申请日：2002-10-31

Applicant: IBM

Inventor： GOETZINGER WILLIAM JOHN ,  HANDLOGTEN GLEN ,  MIKOS JAMES F ,  NORGAARD DAVID ALAN

IPC: H04L12/54 ,  H04L12/851 ,  H04L12/863 ,  H04L12/935 ,  H04L12/937 ,  H04L13/08 ,  H04L29/04 ,  H04L29/06 ,  H04L12/56

Abstract: PROBLEM TO BE SOLVED: To provide a device and method by which the number of output ports to be serviced by scheduling queues can be increased without reducing the effects of the scheduling queues or increasing the resources consumed by physical array spaces used for the scheduling queues. SOLUTION: Data communication equipment includes a plurality of output ports and a scheduler which assigns priority order to outbound data frames. The scheduler includes one or a plurality of scheduling queues. Each scheduling queue expresses the serviced order of data flows. At least one scheduling queue has a plurality of output ports assigned to the queue. Namely, the scheduling queue is commonly used by two or more output ports. COPYRIGHT: (C)2003,JPO

公开(公告)号：DE69730649D1

公开(公告)日：2004-10-21

申请号：DE69730649

申请日：1997-05-23

Applicant: IBM

Inventor： EMEIGH ROGER D ,  STROM JAMES D ,  MIKOS JAMES F ,  PEASE DAVID L

IPC: H03K19/003 ,  H03K19/0175 ,  H04L25/02