Texas Instruments Corporation

Richard C Nail

William Robert Krenik

Edison H Chiu

Louis J Izzi

Chenwei J Yin

Wei-chan Hsu

A color palette is provided having a plurality input terminals for receiving a plurality of bits of data having an order. A two color path is included which comprises first circuitry coupled to the input terminals for selectively reversing the order of the plurality of bits of data. Second circuitry is coupled to the first circuitry and is operable in a first mode to pass all of the plurality of bits of data received from the first circuitry and in a second mode has at least one word comprising selected ones of the plurality of bits, the selected ones of the bits having a bit order. The third circuitry is provided coupled to the second circuitry and operable to pass all of the bits of data received from the second circuitry in the first mode and operable to selectively reverse the ordering of the selected ones of the bits and pass be at least one word received from the second circuitry in the second mode. The fourth circuitry is further provided coupled to the third circuitry inoperable to receive bits of data passed from the circuitry and select for output as at least one word of true color data at least some of the bits.

Color palette device having big/little endian interfacing, systems and

A differential amplifier (10) having a circuit (18) which images or simulates the bias current flowing in an input stage (34) of the differential amplifier (10) is disclosed. This image circuit (18) resembles a differential amplifier input stage, couples to the signal inputs (28, 30) of the differential amplifier (10), and provides an output signal that reflects such bias current. One embodiment of the present invention feeds this output signal back to the differential amplifier input stage (34) to improve regulation of a constant current source (26). Another embodiment uses this signal to switch current from an external source (86) to the differential amplifier input stage (34) when a constant current source (26) within the differential amplifier input stage (34) fails to maintain a constant current supply.

Growing community of inventors

Plano, TX, United States of America

Richard C Nail