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Jia-Chi

Jia-Chi Chen, Tu-Cheng TW

Patent application numberDescriptionPublished
20100283697ELECTRONIC DEVICE AND MULTI-FREQUENCY ANTENNA THEREOF - An electronic device includes a multi-frequency antenna. The multi-frequency antenna includes a ground portion, a support body, a radiation portion, and a strap. The ground portion defines a gap, and two grooves communicating with the gap and located at opposite ends of the gap. The radiation portion resists against a sidewall bounding the gap, and is connected to the strap. The radiation portion is accommodated in the gap and substantially coplanar with the ground portion. The radiation portion defines a slot. The support body is located in the gap and on the radiation portion, to support the strap.11-11-2010
20100289601OVERDRIVE TOPOLOGY STRUCTURE FOR TRANSMISSION OF RGB SIGNAL - An overdrive topology structure for transmission of a RGB signal includes a signal sending terminal, a signal receiving terminal, and a transmission line to transmit the RGB signal from the signal sending terminal to the signal receiving terminal. The transmission line is divided into a number of section transmission lines. A node is formed between every two section transmission lines. An impedance of a first section transmission line approaching to the signal sending terminal is less than an impedance of a second section transmission line approaching to the first section transmission line to overdrive the RGB signal at a first node between the first and second section transmission lines. At least one node except the first node is grounded via a resistor. An equivalent resistance of the resistor is equal to a resistance of the first resistor.11-18-2010
20110038427DIFFERENTIAL SIGNAL TRANSMISSION DEVICE - A differential signal transmission device transmits N differential signal pairs from a differential signal generator to a number of receiving terminals. The N differential signal pairs include N positive signals and N negative signals. The N positive signals are clustered at a first positive clustering point. The first positive clustering point is connected to a second positive clustering point via a first matching resistor. The second positive clustering point is grounded via a first grounding resistor, and outputs a number of positive signals to the number of receiving terminals respectively. The N negative signals are clustered at a first negative clustering point. The first negative clustering point is connected to a second negative clustering point via a second matching resistor. The second negative signal clustering point is grounded via a second grounding resistor, and outputs a number of negative signals to the number of receiving terminals respectively.02-17-2011

Jia-Chi Ho, Hsinchu Hsiang TW

Patent application numberDescriptionPublished
20090009198PROBING DEVICE - A probing device includes a rack that has an outer support member supporting a circuit layer and a center support member supporting a probe assembly. When the tester touching down the circuit layer of the probing device from the top side, the outer support member of the rack bears this touchdown stress. When the probes of the probe holder touching down the electronic components of an IC wafer under test, the center support member of the rack bears the reaction force from the IC wafer.01-08-2009

Jia-Chi Lee, Taipei TW

Patent application numberDescriptionPublished
20080208470Communication method and communication system - A communication method is applied to a first peripheral communication device and a communication device. The communication device has a data exchanging module, a GPS module electrically connected to the data exchanging module, and a Bluetooth communication module electrically connected to the data exchanging module. The communication method includes the following steps. First, the first peripheral communication device outputs a first Bluetooth signal carrying first GPS data. Next, the data exchanging module receives the first GPS data from the Bluetooth communication module and transmits the first GPS data to the GPS module. Then, the GPS module calculates a first GPS position of the communication device through a position algorithmic process according to the first GPS data.08-28-2008