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| Number | Title | Issue Date |
| 6049246 | Amplifier offset cancellation using current copier A differential amplifier circuit achieves offset cancellation by supplying an offset correction current from a current copier circuit to the output of the differential amplifier. The current copier is programmed by closing a first switch to short the diff... | 04/11/2000 |
| 6040815 | LCD drive IC with pixel inversion operation A column-driver integrated circuit, and related method, for driving the columns of LCD displays uses paired digital-to-analog converters to provide analog signals in an upper voltage range and in a lower voltage range. During a first drive cycle, first an... | 03/21/2000 |
| 5852426 | Power-saving circuit and method for driving liquid crystal display A power-saving column driver integrated circuit, and a power-saving method for driving a liquid crystal display, include a series of multiplexers coupled to the columns of the display. The multiplexers selectively couple each of the columns to a common ex... | 12/22/1998 |
| 5818252 | Reduced output test configuration for tape automated bonding An integrated circuit assembly using tape automated bonding (TAB) reduces the number of TAB test pads formed upon the TAB film, for purposes of testing the integrated circuit prior to surface mounting, by sharing at least some of such test pads between at... | 10/06/1998 |
| 5754156 | LCD driver IC with pixel inversion operation A column-driver integrated circuit, and related method, for driving the columns of LCD displays uses paired digital-to-analog converters to provide analog signals in an upper voltage range and in a lower voltage range. During a first drive cycle, first an... | 05/19/1998 |
| 5604449 | Dual I/O logic for high voltage CMOS circuit using low voltage CMOS processes CMOS transistor logic circuitry is permitted to operate at higher power supply voltages while retaining lower voltage processing geometries by providing each input signal as dual input signals that track each other within two different voltage ranges. A s... | 02/18/1997 |
| 5578957 | Integrated circuit having different power supplies for increased output voltage range while retaining small device geometries An integrated circuit for driving an active or passive matrix liquid crystal display panel or the like provides an analog output signal which switches through a voltage range that exceeds the safe operating voltage of the CMOS transistors from which it is... | 11/26/1996 |
| 5572211 | Integrated circuit for driving liquid crystal display using multi-level D/A converter An integrated circuit is provided for generating analog output voltages for a series of column driver output circuits used to drive an active or passive matrix LCD display. The digital value corresponding to the shade of gray for each column is stored on ... | 11/05/1996 |
| 5528256 | Power-saving circuit and method for driving liquid crystal display A power-saving column driver integrated circuit, and a power-saving method for driving a liquid crystal display, include a series of multiplexers coupled to the columns of the display. The multiplexers selectively couple each of the columns to a common ex... | 06/18/1996 |
| 5510748 | Integrated circuit having different power supplies for increased output voltage range while retaining small device geometries An integrated circuit for driving an active or passive matrix liquid crystal display panel or the like provides an analog output signal which switches through a voltage range that exceeds the safe operating voltage of the CMOS transistors from which it is... | 04/23/1996 |
