IP Library Granted Patent US 8,112,572
Granted Patent B2
US 8,112,572 · App. 12/260,419 · Granted Feb 7, 2012

Apparatus for swapping high-speed multimedia signals

Assignee: TranSwitch Corporation
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Quick Facts
Patent No.
US 8,112,572
App. No.
12/260,419
Granted
Feb 7, 2012
Kind
B2
Abstract

An apparatus for swapping output high-speed multimedia signals. In one embodiment the apparatus comprises a plurality of inputs coupled to a multimedia transmitter; a plurality of outputs coupled to a plurality of pins of a multimedia interface connector; and a controller for generating a control signal for configuring an order in which the plurality of inputs are routed to the plurality of outputs, wherein the order in which the plurality of inputs are routed to the plurality of outputs is set to enable un-crossing of one or more conducting wires coupling the plurality of inputs to the multimedia transmitter and to enable un-crossing of one or more conducting wires coupling the plurality of outputs and the plurality of pins of the multimedia interface connector.

Claims (20)

1. An apparatus for swapping output high-speed multimedia signals, comprising:

a plurality of inputs coupled to a multimedia transmitter;

a plurality of outputs coupled to a plurality of pins of a multimedia interface connector; and

a controller for automatically detecting an order of the plurality of input pins of the multimedia interface connector and generating a control signal based on the detected order of the pins, wherein the control signal configures an order in which the output high-speed multimedia signals at the plurality of inputs are routed to the plurality of outputs, wherein the order in which the output high-speed multimedia signals at the plurality of inputs are routed to the plurality of outputs is set to route at least one output high-speed multimedia signal to at least one output of the plurality of outputs that is unparallel to its respective at least one input of the plurality of inputs to enable un-crossing of one or more conducting wires coupling the plurality of inputs to the multimedia transmitter and to enable un-crossing of one or more conducting wires coupling the plurality of outputs and the plurality of pins of the multimedia interface connector.

2. The apparatus of claim 1 , wherein the high-speed multimedia signals are Transition Minimized Differential Signaling (TMDS) characters transmitted over TMDS channels.

3. The apparatus of claim 1 , wherein the multimedia signals further includes a clock signal.

4. The apparatus of claim 1 , wherein the high speed multimedia signals are DisplayPort signals transmitted over a plurality of lanes.

5. The apparatus of claim 1 , the controller is further capable of generating a control signal adapted to untwist differential pairs connecting the plurality of outputs and the plurality of pins of the multimedia interface connector, wherein a differential pair is a pair of conductors carrying a differential signal.

6. The apparatus of claim 1 , is integrated in the multimedia transmitter.

7. The apparatus of claim of 1 , is integrated in the multimedia interface connector.

8. An apparatus for swapping input high-speed multimedia signals, comprising:

a plurality of inputs coupled to a plurality of pins of a multimedia interface connector;

a plurality of outputs coupled to a multimedia receiver; and

a controller for automatically detecting an order of the plurality of pins of the multimedia interface connector and generating a control signal based on the detected order of the pins, wherein the control signal configures an order in which the input high-speed multimedia signals at the plurality of inputs are routed to the plurality of outputs, wherein the order in which the input high-speed multimedia signals at the plurality of inputs are routed to the plurality of outputs is set to route at least one input high-speed multimedia signal to at least one output of the plurality of outputs that is unparallel to its respective at least one input of the plurality of inputs to enable un-crossing of one or more conducting wires coupling the plurality of outputs to the multimedia receiver and to enable un-crossing of one or more conducting wires coupling the plurality of inputs and the plurality of pins of the multimedia interface connector.

9. The apparatus of claim 8 , wherein the high-speed multimedia signals are TMDS characters transmitted over TMDS channels.

10. The apparatus of claim 8 , wherein the multimedia signals further includes a clock signal.

11. The apparatus of claim 8 , wherein the high speed multimedia signals are DisplayPort signals transmitted over a plurality of lanes.

12. The apparatus of claim 8 , the controller is further capable of generating a control signal adapted to untwist differential pairs connecting the plurality of inputs and the plurality of pins of the multimedia interface connector, wherein a differential pair is a pair of conductors carrying a differential signal.

13. The apparatus of claim of 8 , is integrated in the multimedia transmitter.

14. The apparatus of claim of 8 , is integrated in the multimedia interface connector.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 18, 2014
From: TRANSWITCH CORPORATION
To: CADENCE DESIGN SYSTEMS, INC.
Reel/Frame 033770/0982 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2008
From: BAR-NIV, AMIR
To: TRANSWITCH CORPORATION
Reel/Frame 021756/0312 →
Continuity (1)
Related Publication 20100107212A1 · Apr 29, 2010