Abstract: For on-chip testing an on-chip power switch coupled to a core logic and to a decoupling capacitance, after the power switch enters a test mode, the decoupling capacitance is pre-charged or discharged; the power switch is turned ON or OFF according to test patterns; and a voltage level at the decoupling capacitance is analyzed or a leakage current flowing the power switch is measured. So that, whether the power switch is passed or failed is identified.

Abstract: For on-chip testing an on-chip power switch coupled to a core logic and to a decoupling capacitance, after the power switch enters a test mode, the decoupling capacitance is pre-charged or discharged; the power switch is turned ON or OFF according to test patterns; and a voltage level at the decoupling capacitance is analyzed or a leakage current flowing the power switch is measured. So that, whether the power switch is passed or failed is identified.

Abstract: An isolation cell having a test mode, connected between a first block and a second block, wherein the first block can operate in either a power-up mode or a power-down mode, comprises: an input terminal for receiving an input signal that is derived from the first block; an output terminal for outputting an output signal to the second block; a normal-sleep terminal for determining the isolation cell is operated in the power-up mode or in the power-down mode, and the logic level of the normal-sleep terminal is determined by the operation mode of the first block; and, a DFT-sleep terminal is for overwriting the logic level of the normal-sleep terminal when the isolation cell is in the test mode.

Abstract: AF lens position determination systems and methods. The system comprises an anti-dazzling screen, a sensor and a processing module. The anti-dazzling screen comprises first and second areas. The length of a respective covered sub-area in the first area is a first distance, and the length of a respective uncovered sub-area in the first area increases progressively from the center to a first border of the anti-dazzling screen. The length of a respective uncovered sub-area in the second area is a second distance, and the length of a respective covered sub-area in the second area increases progressively from the center to a second border of the anti-dazzling screen. The sensor moves within a range, and generates high and low signals based on the anti-dazzling screen. The processing module determines the position of an AF lens according to the signals generated by the sensor.

Abstract: A user interface of an interactive program guide includes a two-dimensional EPG area and a selected program area. The two-dimensional EPG area includes a list of channels, programs corresponding to the channels and an indicator pointing to a selected program. The selected program area includes an analog clock indicating the current time and display period of the selected program and a status area with text indicating the status of the selected program.

Abstract: The method for accessing an EPG server includes the steps of: sending a web request from a browser-embedded DTV viewing terminal to the EPG server through the Internet; identifying the web requester in the EPG server; providing collected EPG in a webpage mode in the EPG server; and providing DTV presenting parameters from the EPG server to the browser-embedded DTV viewing terminal as soon as a desired program is selected.

Abstract: The method of building group profiles for customizing EPG viewing includes the steps of: automatically establishing background information of viewers by means of personal profiles of the viewers; and automatically establishing preference information of the viewers by means of personal profiles or browsing records of the viewers.

Abstract: AF lens position determination systems and methods. The system comprises an anti-dazzling screen, a sensor and a processing module. The anti-dazzling screen comprises first and second areas. The length of a respective covered sub-area in the first area is a first distance, and the length of a respective uncovered sub-area in the first area increases progressively from the center to a first border of the anti-dazzling screen. The length of a respective uncovered sub-area in the second area is a second distance, and the length of a respective covered sub-area in the second area increases progressively from the center to a second border of the anti-dazzling screen. The sensor moves within a range, and generates high and low signals based on the anti-dazzling screen. The processing module determines the position of an AF lens according to the signals generated by the sensor.

Abstract: A dual-mode telecommunication device and its driving method are disclosed. The dual-mode telecommunication device electrically connects with a voice input/output communication unit for transmitting/receiving an analog voice signal. In addition, the dual-mode telecommunication device comprises a processor and a switch, wherein the processor is used for detecting/transforming the signal type and generating a control signal based on a detection result. The switch is used for assisting the voice input/output communication unit performing an Internet telecommunication mode or a PSTN (Public Switched Telephone Network) telecommunication mode, alternatively based on the control signal. The driving method is used for determining whether assisting the voice input/output communication unit to electrically connect with the Internet or not by the switch based on detecting a signal which contains an IP, a status result and a dial-tone result of the voice input/output communication unit.

Abstract: A brightness control circuit is used to control brightness of a light emitting module. A light sensor module generates a first current through itself according to a light intensity. A charging module is coupled between the light sensor module and the ground, and generates a charging voltage at a voltage node according to the first current. A voltage control circuit comprises a reference voltage source, a comparator and a diode. The reference voltage source provides a reference voltage. The comparator has a non-inverse input terminal coupled to the reference voltage source, an inverse input terminal coupled to the voltage node, and an output terminal. The comparator outputs a comparative signal according to the reference voltage and the charging voltage. The diode is coupled between the inverse input terminal and the output terminal. The switch is coupled to the voltage control circuit and provides a second current through the light emitting module according to the comparative signal.

Abstract: A heat sink (100) includes a plurality of metal fins (10) interlocked with each other by interlocking units (11) formed between them. The interlocking units each include a protruding finger (122), a hole (114) and a controlling member (116, 117). The protruding finger, the hole and the controlling member are aligned with each other. The protruding finger includes a connecting tab (112a) which extends from a flange (14) of the metal fin and a locking tab (112b) which is curved inwardly from the connecting tab towards a main plate (12) of the metal fin. The locking tab of a rear metal fin extends into the hole of a front metal fin and fittingly abuts with the controlling member of the front metal fin so as to firmly interlock the rear and front metal fins together.

Abstract: A brightness control circuit is used to control brightness of a light emitting module. A light sensor module generates a first current through itself according to a light intensity. A charging module is coupled between the light sensor module and the ground, and generates a charging voltage at a voltage node according to the first current. A voltage control circuit comprises a reference voltage source, a comparator and a diode. The reference voltage source provides a reference voltage. The comparator has a non-inverse input terminal coupled to the reference voltage source, an inverse input terminal coupled to the voltage node, and an output terminal. The comparator outputs a comparative signal according to the reference voltage and the charging voltage. The diode is coupled between the inverse input terminal and the output terminal. The switch is coupled to the voltage control circuit and provides a second current through the light emitting module according to the comparative signal.

Abstract: The present invention provides a pipe connecting structure including a male flange block combined with a first pipe and a female flange block combined with a second pipe, which is fastened to the male flange block by fastening means, where a protrusion having a hole that communicates with the first pipe is formed through the male flange block, and an insert portion into which the protrusion is inserted is formed through the female flange block, and a sealing member to closely contact with the end face of the protrusion is seated on the bottom inside the insert portion, and the sealing member includes an inner sealing part of soft metal and an outer sealing part of rubber tightly fitted around the outer circumference of the inner sealing part.

Abstract: A digital TV and a driving method thereof enable a user to view the digital TV without interruption even if the present operating system is in an abnormal state. The digital TV includes a digital TV receiving part for receiving and decoding a broadcasting stream from an outside, a host CPU for controlling the digital TV receiving part, a local CPU for controlling the digital TV receiving part if the host CPU operates in an abnormal state, and a programmable logic device for switching the control of the digital TV receiving part from the host CPU to the local CPU if the host CPU operates in the abnormal state.

Abstract: A variable capacity rotary compressor to securely fix a clutch pin to a rotation shaft includes first and second compression chambers having different inner volumes, a rotation shaft penetrating the first and second compression chambers, first and second eccentric bushes disposed on an outer circumference of the rotation shaft, a slot provided between the first and second eccentric bushes, a clutch pin protruding from the rotation shaft and disposed in the slot, and a fixing pin coupled with the side of the clutch pin in the rotation shaft to securely fix the clutch pin to the rotation shaft. A groove having a predetermined width can be formed at a rear side of the clutch pin and a rear side of the fixing pin can be inserted into the groove to couple with the clutch pin in the rotation shaft.

Abstract: A brushless DC motor prevents disconnection of a magnetic flux and to minimize leakage of the magnetic flux, thereby reducing torque ripple. A plurality of magnetic flux-disconnection preventing holes are arranged in an outer periphery of a rotor core between installing holes into which magnets are fitted. The plurality of magnetic flux-disconnection preventing holes are symmetrical at both sides about a first line connecting a center of the rotor core to a center between the adjacent installing holes, and an angle between the first line and a second line connecting the center of the rotor core to an outermost end of the plurality of magnetic flux-disconnection preventing holes is about 15˜20°. A length between an outer periphery of the rotor core and an outer periphery of the plurality of magnetic flux-disconnection preventing holes is smaller than a gap between the rotor core and the stator.

Abstract: A variable capacity compressor and a starting method thereof. The variable capacity compressor includes a four-way valve having a suction gas distribution function and an idling chamber high-pressure injection function, thereby achieving a reduced manufacturing cost and an improved reliability incurred by the use of a validated component. Further, a boosting algorithm is applicable to obtain a driving source of the four-way valve in an initial parallel pressure state.

Abstract: A variable capacity rotary compressor capable of equalizing an interior pressure (i.e., discharge pressure) of a hermetically sealed container with an interior pressure of a compression chamber where an idling operation is performed, resulting in a reduction of rotation resistance of a rotary shaft. The variable capacity rotary compressor includes housings disposed in the hermetically sealed container and having an interior space partitioned by intermediate plates into first and second compression chambers with different capacities, a rotary shaft rotatably disposed in the two compression chambers, eccentric units to selectively induce a compression operation in one of the two compression chambers depending on a rotational direction of the rotary shaft, and a pressure adjustment unit to apply the discharge pressure of the hermetically sealed container to one of the compression chambers where the idling operation is performed.

Abstract: A variable capacity rotary compressor having a slot defined between eccentric bushes, a latch pin fitted to a rotary shaft so as to be latched to the slot, and a restraint unit for restraining the eccentric bushes upon rotation of the rotary shaft. The restraint unit includes a restraint member mounted in the rotary shaft, a supporting shaft extending from the latch pin to be inserted into the hollow portion of the restraint member, and a return spring interposed between an outer circumference of the supporting shaft and the restraint member to move the restraint member inward toward the center of the rotary shaft when the rotary shaft is not rotated. The restraint unit is easy to manufacture and install and to ensure smooth operation thereof.

Abstract: A rotary buckle comprises a female buckling element and a male buckling element. The female buckling element comprises an opening and a bucking portion, wherein a side opposite to the opening comprises a receiving chamber. The male buckle element comprises a fitting portion for fitting into the opening of the female buckling element and a latching portion for buckling position into the buckling portion of the female buckling element, wherein a side opposite to the fitting portion comprises a receiving chamber for receiving a knitted belt, and wherein a track is disposed at a side opposite to the opening of said female buckling element along which a directing element of the receiving chamber of the female buckle can be rotated.