Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Chun-Hao

Chun-Hao Chang, Min-Hsiung TW

Patent application numberDescriptionPublished
20080219350H.264/AVC intra coding algorithms having quality scalability - Different algorithms are used in H.264/AVC intra coding to form three coding levels. Algorithms used in two of the three coding levels reduce calculation complexities and power consumptions. The basic level is an exception, which fully keeps an original picture quality. Thus, various needs can be met by coding in the various levels with the various algorithms.09-11-2008

Chun-Hao Chang, Taipei Hsien TW

Patent application numberDescriptionPublished
20080320447METHOD OF ACCESSING WEB PARAMETERS - A method of accessing Web parameters includes: providing a first program code for managing at least one Web parameter, where the Web parameter is stored in a parameter set and the first program code is a light-weight program code; and when a second program code is executed, accessing the Web parameter stored in the parameter set by utilizing the first program code.12-25-2008

Chun-Hao Chen, Taipei County TW

Patent application numberDescriptionPublished
20110141014MOVABLE TOUCHPAD WITH HIGH SENSITIVITY - A highly sensitive movable touchpad is disclosed in the present invention. It is used for laptop computers and has a slidable template for users to move so that a cursor can be controlled by the touchpad. A resistive or capacitive detecting surface can be applied for detecting users' click, double click, drag, or scroll motion on any point of the surface. Additionally, there is an optical displacement sensor provided under the slidable template for detecting surface information on the back surface of the slidable template. A sequence of images of surface movement are processed by an image processing unit. Then, relative movement information is calculated and sent to an operating system in the computer. The operating system controls the cursor with the relative movement information. The present invention uses edge detectors for dynamically controlling the cursor and calibrating location of the cursor so that positioning of the touchpad is synchronous with the cursor.06-16-2011

Chun-Hao Chen, Tucheng TW

Patent application numberDescriptionPublished
20110134434METHOD AND SYSTEM FOR POSITIONING BY USING OPTICAL SPECKLE - A method and system for positioning by using optical speckle are disclosed in this invention. A highly coherent laser light irradiates a positioning template in advance to record optical speckles caused by interference by scattered light beams from the positioning template for establishing a speckle database. Furthermore, a reference point is defined to position each recorded speckle. Therefore, a coordinate with respect to the reference point corresponding to a specified speckle can be used to position a target or applied to distance measurement by the speckle database. The precision of the speckles according to the present invention is within several micrometers. Hence, it can provide high precision positioning.06-09-2011

Chun-Hao Chen, Taipei TW

Patent application numberDescriptionPublished
20090189690FEED-FORWARD AUTOMATIC-GAIN CONTROL AMPLIFIER (FFAGCA) FOR BIOMEDICAL APPLICATIONS AND AN ASSOCIATED METHOD - The present invention is a feed-forward automatic-gain control amplifier (FFAGCA) for biomedical applications and associated method, the FFAGCA comprises a detector, a controller, a variable gain amplifier (VGA), an input and an output. The associated method to process various kinds of biomedical signals with the FFAGCA comprises acts of adjusting gain setting with control path and simultaneously a signal amplification with signal path.07-30-2009
20090240131Intra-Body Communication (IBC) Device And A Method Of Implementing The IBC Device - The present invention relates to an intra-body communication (IBC) device and a method of implementing the IBC device. The IBC device is fabricated as a system-on-a-chip (SOC) and comprises a first electrode, a second electrode, an IBC module and a biomedical chip. The first electrode is connected to a patient's skin. The second electrode is connected to the patient's skin. The IBC module is connected to the first electrode and comprises a wireless communication device. The biomedical chip is connected to the second electrode and communicates with the IBC module through the patient's skin to receive external commands and transmit sensed biomedical parameters to a faraway location.09-24-2009

Chun-Hao Chen, Taipei Hsien TW

Patent application numberDescriptionPublished
20100082826NETWORK AUTHORIZATION METHOD AND APPLICATION THEREOF - A network authorization method is disclosed. The network authorization method includes the following steps. After a third server receives a client account from a client, the third server generates and replies a client session ID to the client. Transmit the client session ID to the client. After the client transmits a log-in session ID to a service server, receive the log-in session ID from the service server. Compare the client session ID with the log-in session ID. When the client session ID is the same with the log-in session ID, transmit an authorized signal to the service server to make the service server allow the client to log in.04-01-2010

Chun-Hao Hsu, Tu-Cheng TW

Patent application numberDescriptionPublished
20100033915PORTABLE ELECTRONIC DEVICE - A portable electronic device includes a housing, a circuit board, and a keyboard. The housing defines a receiving space. The circuit board is secured in the receiving space and includes a number of first latching portions. The keyboard includes a number of second latching portions corresponding to the first latching portions, the second latching portions are capable of latching with the first latching portions.02-11-2010

Chun-Hao Huang, Hsinchu City TW

Patent application numberDescriptionPublished
20110192958PHOTOSENSOR DEVICE WITH DARK CURRENT CANCELLATION - A photosensor device with dark current cancellation is disclosed. The photosensor device comprises a first and second photosensors, a first and second current replication circuits and a digital signal generator. The first photosensor has a first dark current but does not receive any photo signal. The second photosensor has a second dark current and receives a photo signal to generate photocurrent according to the photo signal. The first current replication circuit generates a replicated current according to the first dark current and injects the replicated current into the second photosensor for cancelling the second dark current from the second photosensor. The second photosensor is coupled to the second current replication circuit which generates charge and discharge currents according to the photocurrent of the second photosensor. The second current replication circuit is coupled to a digital signal generator which generates digital signals according to the charge and discharge functions, and the electrical characteristic of the digital signal is related to the intensity of the photo signal.08-11-2011

Chun-Hao Huang, Hsin-Chu TW

Patent application numberDescriptionPublished
20110228894SHIFT REGISTER CIRCUIT AND GATE DRIVING CIRCUIT - An exemplary shift register circuit includes a shift register, a first switching circuit and a second switching circuit. The shift register has a start pulse signal input terminal and a start pulse signal output terminal. The first switching circuit includes a first input switch unit and a second output switch unit respectively electrically coupled to the start pulse signal input terminal and the start pulse signal output terminal. The second switching circuit includes a second input switch unit and a first output switch unit respectively electrically coupled to the start pulse signal input terminal and the start pulse signal output terminal. Moreover, on-off states of the first input and first output switch units are opposite to on-off states of the second input and second output switch units. Moreover, a gate driving circuit using the above-mentioned shift register and switching circuits also is provided.09-22-2011

Chun-Hao Huang, Taipei TW

Patent application numberDescriptionPublished
20090210758METHOD FOR REDUCING DATA ERROR WHEN FLASH MEMORY STORAGE DEVICE USING COPY BACK COMMAND - A method for a flash memory storage device to use a copy back command includes the following steps. The method includes the step of copying a data in a first block of a flash memory to a buffer outside the flash memory, checking if the data in the buffer is correct, and copying the data in the first block of the flash memory to a second block in the flash memory when the data in the buffer is correct.08-20-2009

Chun-Hao Huang, Yangmei Taoyuan TW

Patent application numberDescriptionPublished
20080310809Optical film - An optical film including brightness enhancing, diffusion, and splitting layers; multiple optical microstructures being disposed on an upper surface of the brightness enhancing layer; the diffusion layer containing multiple diffusion grains; streams of light upon entering into the optical film delivering diffusion effect through the diffusion layer and provided with different traveling routes through the beam splitting layer to upgrade operation efficiency, create brightness enhancing effect through the brightness enhancing layer, and meet compact design requirements when applied in a backlight unit.12-18-2008

Chun-Hao Hung, Yangmei Township TW

Patent application numberDescriptionPublished
20110097612SECONDARY BATTERY END CAP ASSEMBLY - A secondary battery end cap assembly is extruded integrally, is provided on a cap plate and corresponds to a first perforation and a second perforation of the cap plate. The first perforation corresponds to a gas seal part of the end cap assembly and a side of the gas seal part is extended with a safety valve corresponding to the second perforation to release gas pressure, preventing the battery from being overly recharged that an interior of the battery is too hot and pressure increases, allowing the battery to explode to cause danger. The safety valve is made by a non-metallic material. Hence, a secondary battery end cap assembly is extruded integrally to effectively reduce manufacturing time and improve production efficiency. Furthermore, as the safety valve is penetrated and embedded by extruding a non-metallic material, gas tightness is enhanced without being unriveted and welding problems.04-28-2011

Chun-Hao Liao, Taipei TW

Patent application numberDescriptionPublished
20090174258Built-in uninterruptible power supply system and electronic device using the same - A built-in uninterruptible power supply system and an electronic device using the same are provided. The built-in uninterruptible power supply system supplies power to an electronic component of an electronic device. The built-in uninterruptible power supply system includes a power supply, a power storage, a power supply switch and a power display. The power supply switch electrically couples the power supply with the power storage. The power supply switch switches to transmit a first power or a second power to the electronic component. The power display is disposed in the casing and electrically coupled with the power storage for displaying a storage power of the power storage. When the external power source stops supplying power to the power supply, the power supply switch switches to transmit the second power from the power storage to the electronic component.07-09-2009
20090199221EJECTING MECHANISM CAPABLE OF PREVENTING ACCIDENTAL TOUCH AND DISK DRIVE USING THE SAME - An ejecting mechanism capable of preventing an accidental touch is disposed in a housing having a tray and used for ejecting the tray out of the housing. The ejecting mechanism includes a tray ejecting button and a front cover. The front cover is disposed at the housing and located at the ejecting direction of the tray. The front cover has a sliding key including a pressing body and a triggering body connected to one end of the pressing body. When the pressing body drives the triggering body to slide until the triggering body aligns to the tray ejecting button, the pressing body is capable of being forced to drive one end of the triggering body to trigger the tray ejecting button to eject the tray.08-06-2009

Chun-Hao Lin, Taoyuan County TW

Patent application numberDescriptionPublished
20090061838MOBILE DEVICE WITH MULTIPLE OPERATING SYSTEMS AND METHOD FOR SHARING A WIRELESS COMMUNICATION MODULE BETWEEN OPERATING SYSTEMS THEREOF - A mobile device capable of running at least two operating systems (OS), and a method for sharing a wireless communication module between the operating systems are provided. A hardware controller is configured to communicate between the two operating systems. First, a first operating system encodes an instruction into a first uniform message and transmits the first uniform message to a second operating system, in which the wireless communication module is installed, through the hardware controller. Afterwards, the second operating system enables the wireless communication module to start receiving positioning data according to the first uniform message, encodes the data into a second uniform message, and sends the second uniform message back to the first operating system through the hardware controller. Finally, the first operating system decodes the second uniform message into positioning data.03-05-2009

Chun-Hao Lu, Tainan Hsien TW

Patent application numberDescriptionPublished
20090026861GENERATOR FOR EXERCISE EQUIPMENT - A generator for exercise equipment includes a disc and a case. The case has a surface. A number of first locating holes are disposed on the surface to accommodate coils therein. The case is pivotally connected to the disc. The case has an inner wall. A number of second locating holes are disposed on the inner wall of the case to accommodate magnets therein. By spinning, the disc is spinning with respect to the case so that the electricity is generated thereafter.01-29-2009

Chun-Hao Tseng, Pingtung Countyy TW

Patent application numberDescriptionPublished
20100112889METHODS FOR FORMING GAS BARRIERS ON ELCTRONIC DEVICES - A method for forming gas barriers on electronic devices is provided. The fabrication method includes: providing a first substrate having at least one electronic device thereon; providing a second substrate and forming a gas barrier over the second substrate; disposing the second substrate over the first substrate, wherein the gas barrier faces the electronic device; providing an electromagnetic wave light source over the second substrate; and irradiating the second substrate by the electromagnetic wave light source to transfer the gas barrier to the electronic device and cover the electronic device.05-06-2010

Chun-Hao Yu, Taoyuan TW

Patent application numberDescriptionPublished
20110291580ILLUMINATING MODULE CAPABLE OF COMPENSATING CURRENT - An illuminating module is capable of compensating current. The illuminating module can tune the light with a light modulating circuit. The illuminating module includes an illuminating unit and a compensating circuit. The illuminating unit includes a power source, a load impedance, and a level unit. The level unit has a level potential which changes with the light modulating circuit. The compensating circuit includes a first resistor, a first switch, and a judging unit. The first resistor is coupled to the power source. The first switch is coupled to the first resistor and the illuminating unit. The judging unit is coupled to the level unit and the first switch. When the level potential is less than a predetermined potential, the judging unit makes the first switch to be at the conducting state to parallel connect the first resistor and the load impedance.12-01-2011