Dynacolor, Inc.

Alieva, Inc.

Charles Chia-Ming Chuang

Warren Chen

Anthony Yeh

David YuanJei Tse

Hsueh-Sheng Chang

Hsien-His Juan

Huei-Mei Hsieh

A power conversion system is disclosed. The system comprises a plurality of power conversion modules and a controller that turns on/off each power conversion module separately based on changing load conditions, and manages to keep each power conversion module running at its peak efficient state.

High efficiency adaptive power conversion system and method of operation thereof

The present invention relates to digital protection circuits in a CRT based display system for the purpose of providing hardware protections to the system before exactly removing a crisis. Self-testing and diagnostic capabilities are also supplemented in a CRT based monitor that are used to lacking in the monitor. The protection circuit basically includes a microprocessor section, a timer section, a register section, a digital to analog converter section, an analog to digital converter section, a non-volatile memory section, and an analog section. All sections can be integrated in a single chip and share a single controller. By using two diodes with their negative terminals coupled together to supplement capabilities of self-testing and diagnostic even when lack of power supplying. All implementations mentioned above can be easily achieved at a very low additional cost.

Digital protection circuit for CRT based display systems

A digital control CRT test system allows the testing of a CRT and various peripheral components thereof to be digitally controlled and supervised by a microprocessor. The test system comprises at least a microprocessor and at least a nonvolatile memory unit for storing at least a test parameter data set representative of a test setting for the CRT part under testing. Digital to analog converters in conjunction with analog test instruments are used to set the CRT part under testing in accordance with the test parameter data set stored in the nonvolatile memory unit. Further, analog to digital converters are used to convert the analog response signal indicative of whether the CRT part under testing is in good condition into digital form readable by the microprocessor. The microprocessor is able to generate accordingly a report indicative whether the CRT part under testing is in good condition.

Digital control cathode ray tube test system

A single chip display system processor in a CRT (Cathode Ray Tube) based display is disclosed, including a display system controller, a horizontal processor, a vertical processor, and optionally, the on screen display (OSD) processor. The horizontal processor, a vertical processor, and the on screen display (OSD) processor are under control by the display system controller. This single chip display system processor also controls some elements of the CRT based display, such as power horizontal deflection circuit, power vertical deflection circuit, video processor, the power video circuit, power supply for the electronics and CRT, and the user front panel. The display system processor encompasses a phase lock loop (PLL) circuit within the horizontal processor that compares incoming horizontal signal with the feedback signal from power horizontal deflection circuit for the purpose of synchronizing incoming video signals to display stable image in the CRT based display system.

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Taipei, Taiwan

Charles Chia-Ming Chuang