System for encoding an image control signal onto a pixel clock signal
AssigneeTexas Instruments Incorporated
InventorRichard Mark Prentice
Life of this patent
Estimating the term…
Abstract
A system for encoding control data onto a clock signal includes at least one clock cycle in the clock signal; a first transition in the at least one clock cycle, the first transition is from a first voltage level to a second voltage level, the first transition is in a first location in the at least one clock cycle; a second transition in the at least one clock cycle, the second transition is from the second voltage level to the first voltage level, the second transition has a variable location in the clock cycle; and an encoder circuit for positioning the second transition in the variable location in response to the control data.
Claims11
A system for encoding control data onto a clock signal comprising:
- at least one clock cycle in the clock signal;
- a first transition in the at least one clock cycle, the first transition is from a first voltage level to a second voltage level, the first transition is in a first location in the at least one clock cycle;
- a second transition in the at least one clock cycle, the second transition is from the second voltage level to the first voltage level, the second transition has a variable location in the clock cycle;
- and
- an encoder circuit for positioning the second transition in the variable location in response to the control data;
- wherein the control data comprises three control bits.
A device for transmitting video signals comprising:
- video signal bits having parallel image data bits and at least one control bit;
- at least one image serializer for converting the parallel image data bits to serial data;
- an encoder circuit for converting the at least one control bit to parallel clock encoding data;
- a control signal serializer for providing an encoded clock signal;
- and
- a clock signal for clocking the at least one image serializer and the control signal serializer.
A method for transferring video signals comprising:
- encoding control data onto a clock signal to provide an encoded clock signal;
- converting parallel video data to serial data;
- transferring the serial data and the encoded clock signal through differential lines;
- converting the serial data on the differential lines to parallel data;
- and
- decoding the encoded clock signal to obtain the control data and the clock signal.
Dependencies are inferred from the claim text.