Abstract: The invention relates to an apparatus for electronic display comprising means for generating liquid-crystal-display (LCD) input signals, a LCD panel operable to display a color image according to the LCD input signals, a circuit operable to generate a plurality of sets of gamma correction values for gamma correction of the LCD input signals, and means for eliminating dependency of the plurality of sets of gamma correction values on a supply voltage (AVDD) of the circuit.

Abstract: The present invention relates to a method and a system of reducing flicker in a liquid crystal display (LCD). The LCD produces a display based on a video signal. A gamma curve of the LCD includes multiple gamma reference voltages corresponding to multiple gray scale values of the video signal. The method (and a system implementing the method) includes determining the gamma curve of the LCD for producing a predetermined luminance performance, driving the LCD by a test pattern having one of the multiple gray scale values, measuring a flicker of the LCD driven by the test pattern, and adjusting a gamma reference voltage in the gamma curve based on the flicker measurement to minimize the flicker of the LCD where the gamma reference voltage corresponds to the gray scale value in the gamma curve.

Abstract: A programmable buffer integrated circuit which can be programmed to output a set of gamma correction reference voltages to be used in LCD displays. Once programmed, the buffers will continuously output the programmed value. The device incorporates a programming interface to allow the programming of the buffer outputs to the desired values during manufacturing and test of the panel. Multiple sets of values can be programmed to provide different gamma correction curves for different user or application requirements.

Abstract: A serial bus which comprises two wires (a clock signal and a data signal), one of which transmits high voltages in addition to the two-level voltages used for conventional serial digital data transmission. During the second part of the transmission one of the serial wires changes function to a high voltage signal that is used to program the location which was addressed in the first part of the transmission. The high voltage signal may be a simple DC level for programming digital data into memory, or it can be a set of pulses with either fixed or variable parameters for programming digital, multi-level or analog levels into memory.

Abstract: A programmable buffer integrated circuit which can be programmed to output a set of gamma correction reference voltages to be used in LCD displays. Once programmed, the buffers will continuously output the programmed value. The device incorporates a programming interface to allow the programming of the buffer outputs to the desired values during manufacturing and test of the panel. Multiple sets of values can be programmed to provide different gamma correction curves for different user or application requirements.

Abstract: A single integrated circuit provides communication, sensing and recording of one or more conditions critical to the entity to which it is attached. The chip is part of a larger module comprising a visual indicator, such as an LED, and a power source such as a battery. The sensor may be a temperature sensor whose output is stored in a non-volatile memory section of the chip on some periodic basis. A product identifier is stored on the chip; a method for product recall or location is described.

Abstract: The invention discloses an analog content addressable memory (CAM) that employs analog storage cells with programmable analog transfer function capability. The analog CAM scans and/or compares its memory array contents to determine if an analog voltage applied at Vin matches a value stored in the memory array. If the value applied to Vin matches a value stored in the analog CAM, the analog data stored at a different and corresponding location in an analog storage cell is coupled to the Vout output. An analog content addressable memory, comprising a first array A of analog memory cells for storing and generating a VA voltage; and a comparator having a first input for receiving a Vin voltage, a second input for receiving the VA voltage from the first array A of analog memory cells. Analog-to-Digital and Digital-to-Analog Converters comprising an array of analog memory cells.

Abstract: Reference voltages are disclosed for storage in addition to the analog or digital information for reconstructing the original voltage value of one or more analog or digital signals in non-volatile memory cells. The reference voltages are stored in separate memory cells and are written at the same time as the target information. The target information may be a single analog voltage, multiple analog voltages or a burst of digital data and is written during a relatively short period of time during which the ambient conditions do not change significantly.

Abstract: Analog integrated circuits have their individual characteristics compensated by the settings of self-contained non-volatile memory elements. The settings of the memory elements are determined by repeatedly testing the possible values until an optimal one is chosen. The testing process is accelerated by eliminating the need to re-write the non-volatile memory for each value that is tested.

Abstract: A configurable integrated circuit and method for trimming a desirable combination of analog and digital functions and customizing pin assignments by programming nonvolatile memory. Functional enhancement and chip compatibility are achieved by configuring an integrated circuit with specified analog and digital settings for operation with an external chip. Multiple NV registers with designated bits that correspond to activating, deactivating, trimming, or changing analog functions including internal voltages, bandgap, and oscillating frequencies.