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Chih-Tsung

Chih-Tsung Chen, Taipei County TW

Patent application numberDescriptionPublished
20100301765DRIVING CIRCUIT OF LIGHT EMITTING DIODE AND LIGHTING APPARATUS - A driving circuit of a light emitting diode (LED) includes a rectifier unit, a voltage-dividing circuit, a control unit, a voltage converter, a resistance and a capacitor. The rectifier unit rectifies an AC power to generate a first operation voltage. The voltage-dividing circuit generates a voltage-dividing signal. The control unit includes a regulating unit and a pulse width modulation (PWM) unit. An output terminal of the regulating unit is coupled to the PWM unit. The PWM unit outputs a PWM signal. The voltage converter adjusts a driving voltage and a driving current of the LED. The resistance is coupled between an output terminal of the regulating unit and a diode. The capacitor is coupled between a power input terminal of the regulating unit and a ground terminal. The PWM unit adjusts the PWM signal according to the voltage-dividing signal and a feedback signal output by the voltage converter.12-02-2010

Chih-Tsung Chen, Taichung City TW

Patent application numberDescriptionPublished
20110146923String curtain - The string curtain has a hanging rack, multiple strings, multiple beads. The hanging rack has multiple hanging holes. The strings are hung on the hanging rack, and each string has a hanging head and a mounting head. The hanging head is mounted around the top end of the string, and mounted through one of the hanging holes, and protrudes a fastening tab toward the bottom end of the string, and fastened on the hanging hole of the hanging rack. The mounting head is mounted around the bottom end of the string. The beads are mounted slidably on the strings from the mounting head. Each bead has an inner diameter smaller than the outer diameter of the string for securely mounted around the string, and may be relocated a new pattern easily.06-23-2011

Chih-Tsung Hu, Xizhi City TW

Patent application numberDescriptionPublished
20100323237BATTERY CONNECTOR COUPLING - An information handling system (IHS) includes an IHS chassis having a processor and defining a battery housing. An IHS connector is located adjacent the battery housing and is electrically coupled to the processor. A battery is located in the battery housing and includes a battery chassis that houses at least one battery cell. A battery connector is electrically coupled to the at least one battery cell and engages the IHS connector. The battery connector is moveably coupled to the battery chassis through a battery connector coupling that allows the battery connector to move relative to the battery chassis when the battery connector engages the IHS connector.12-23-2010
20100330400Apparatus and methods for battery installation - Apparatus and methods for placement of battery packs in portable information handling systems such as notebook and netbook computers. A first set of pivot features may be provided on opposing sidewalls of a battery well that interface with a corresponding set of mating pivot features provided on exterior end surfaces of a battery pack such that the battery pack may be pivoted into and out from the battery well to install or release it from the system, e.g., pivoted from the bottom of the portable information handling system in a manner that does not interfere with, or require modification to, the lid and display of the portable information handling system. A latch mechanism and battery release feature may be further provided that acts to transfer horizontal manipulation (e.g., horizontal sliding motion) of the battery release feature to a vertical latching action that acts to lift the battery pack out from the portable information handling system chassis when releasing the battery pack from the chassis.12-30-2010

Chih-Tsung Huang, Burlingame, CA US

Patent application numberDescriptionPublished
20080317069Speed negotiation for multi-speed communication devices - A method includes defining a pattern of time intervals, each time interval having a respective assigned communication speed, which alternates among multiple communication speeds supported by a first communication device. Synchronization requests are transmitted over a communication medium from the first communication device to a second communication device at the respective communication speed that is assigned in each interval in accordance with the pattern. While transmitting the synchronization requests, synchronization replies sent over the communication medium in response to the synchronization requests are received only at the respective communication speed that is assigned in each interval. Responsively to receiving the synchronization replies from the second communication device, one or more common communication speeds that are supported by both the first and the second communication devices are identified. Communication is established between the first and second communication devices over the communication medium using one of the common communication speeds.12-25-2008

Chih-Tsung Lin, Hsinchu City TW

Patent application numberDescriptionPublished
20090175283Advanced single-chip USB-to-Ethernet controller with a Dual-PHY mode capacity for Ethernet PHY or USB-to-Rev-MII Bridging - This invention relates to a single-chip USB-to-Ethernet controller that can operate either as a standalone USB-to-Ethernet controller integrated circuit chip in one mode, or the Ethernet PHY or the USB-to-Rev-MII Bridging chip in another mode, namely Dual-PHY mode, to interface with an external Network Microcontroller's Ethernet MAC for providing Ethernet and USB Device interface in a network communication system and to provide a mechanism for auto-detection and auto-selection between the Ethernet interface and USB Device interface through some Station Management Register access wherein the Network Microcontroller's Ethernet MAC can access two PHY devices through the same Station Management Interface.07-09-2009

Chih-Tsung Lin, Taipei City TW

Patent application numberDescriptionPublished
20090288871THIN FILM CIRCUIT BOARD DEVICE - A thin film circuit board device includes: a first thin film circuit board having a first protrusion provided with a first conductive contact; a second thin film circuit board having a second protrusion provided with a second conductive contact; and an insulator film disposed between the first and second thin film circuit boards. The first and second protrusions are disposed one above the other. The insulator film is free of a portion that extends between the first and second protrusions. The first and second protrusions are folded together in such a manner that the first and second conductive contacts are brought into contact with each other at the fold thereof.11-26-2009

Chih-Tsung Lin, Taichung TW

Patent application numberDescriptionPublished
20080304801High-brightness light guide plate - The present invention discloses a high-brightness light guide plate, which is a plate formed by a transparent resin having a high refractive index. An incident plane is disposed on a lateral side of the light guide plate, and a light emitting plane is disposed on a surface of the light guide plate. A reflective plane is disposed on a backside of light guide plate facing the light emitting plane and the light guide plate has a plurality of cells sunken into the reflective plane to form a diffusion pattern. The light guide plate has a plurality of diffusion points embossed at the light emitting plane, and each diffusion point is disposed on the light emitting plane, such that the manufacturing cost of a light guide plate mold can be lowered by improving the taste and the uniformity.12-11-2008