Industrial Technology Research Institute

Other

Chung Hsin Lu

Chung-Ju Chang

Yung-Liang Huang

Ji-Shang Yu

Chieh-Ho Lee

June-Dan Shih

Methods and apparatuses for a closed-loop power control in a code-division multiple-access communication system wherein both received signal quality and communication channel quality are used to determine appropriate transmitter power, and transmission may be suspended when a channel quality metric, such as by short-term fading, degrades below a preset minimum threshold, or when a commanded transmitter power exceeds a preset maximum threshold, and wherein the transmitter power is controlled to mitigate fading effects so that received signal quality metric, such as by the average received signal power or by the average received SIR over a control cycle, approaches a preset desired level, and by momentarily suspending a remote terminal, overall system capacity and throughput may be enhanced.

Closed-loop power control method for a code-division multiple-access cellular system

A process is disclosed for reducing the crystallization temperature of amorphous or partially crystallized ceramic films by providing a higher pressure under which the crystallization of the amorphous or partially crystallized ceramic films can be significantly enhanced. The present invention not only improves quality, performance and reliability of the ceramic films, but also reduces the cost for production. By lowering the crystallization temperature, the cost for thermal energy consumed during the crystallization process is greatly reduced. In addition, the interaction or interdiffusion occurring between films and substrates is significantly suppressed or essentially prevented, avoiding the off-stoichiometry and malfunction of thin films, which usually occur in the conventional high-temperature crystallization processes. The process of present invention also decreases the grain size of formed films, thus reducing the roughness of films and producing relatively smooth, good quality films. This process made possible the fabrication of ceramic films with larger area at substantially lower temperatures without using other excitation energy such as laser, ion beam or electron beam, and is applicable to very large scale integrated circuit technologies. The present invention finds broad applications including manufacturing electronic and optical devices such as ferroelectric memories, capacitors, actuators, piezoelectric transducers, pyroelectric sensors, gas-sensors, electro-optic displays, electro-optic switching, non-liner optical devices, and reflective/antireflective coating, etc.

High-pressure process for crystallization of ceramic films at low

A one-bit differential detector for a GMSK signal operates independently of an offset frequency. In particular, a decision signal used by a decision circuit to distinguish between logic '0' and logic '1' is always equal to sin[.DELTA..phi.(T)]. The inventive detector has an improved bit error rate performance in comparison to the prior art.

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Taipei, Taiwan

Chung Hsin Lu