Getac Technology Corporation

Mitac Technology Corporation

Other

Taiwan Semiconductor Manufacturing Comp. Ltd.

Global Unichip Corporation

Ddtic Corporation Ltd.

Avary Holding (shenzhen) Co., Limited.

Qing Ding Precision Electronics (huaian) Co., Ltd

Chih-wen Cheng

Chih-Wen Cheng

Ta-Yung Lee

Chia-Chuan Wu

Cheng-Hsien Yang

Ting-Hsu Chien

Shin-Yao Perng

Xian-Qin Hu

Ke He

Jeng-Hung Tsai

Hua-Shih Liao

Yuan-Ning Hsieh

Zi-Qiang Gao

A method for manufacturing an antenna printed circuit board includes the following steps: providing a flexible-rigid printed circuit board comprising a flexible region and a rigid region. The flexible region comprises at least one first connecting pad and at least one second connecting pad arranged opposite sides of the rigid region. At least one antenna module is attached to the first connecting pad through a conductive paste. The antenna module is fixed on the rigid region by a first reflow soldering process. At least one radio frequency integrated circuit structure is attached to the second connecting pad through a conductive paste. The radio frequency integrated circuit is fixed on the rigid region by a second reflow soldering process. A gap between the antenna module and the rigid region and a gap between the radio frequency integrated circuit structure and the rigid region are filled with dielectric materials and cured.

Method for manufacturing an antenna printed circuit board

A device for generating a duty cycle includes a converter, a corrector, and a control circuit. The converter is configured to generate a first output signal having a duty cycle to an output terminal according to an input signal. The corrector is coupled to the output terminal, and is configured to adjust the duty cycle of the first output signal according to a control signal. The converter is coupled in parallel with the corrector and between a first power source and a second power source. The control circuit is coupled to the output terminal, and is configured to generate the control signal according to the first output signal and a reference signal.

Device and method for generating duty cycle

An integrated circuit, a multi-channel transmission apparatus, and a signal transmission method thereof are provided. The multi-channel transmission apparatus includes a pre-stage circuit, a clock signal generator, and a post-stage circuit. The pre-stage circuit receives a plurality of first clock signals and a plurality of data signals, selects one of the first clock signals to be a base clock signal, and transmits the data signals according to the base clock signal to respectively generate a plurality of middle signals. The clock signal generator generates the first clock signals according to a second clock signal, wherein a frequency of the second clock signal is higher than a frequency of the first clock signals. The post-stage circuit transmits the middle signals according to the second clock signal to respectively generate a plurality of output signals. The pre-stage circuit is a digital circuit, and the post-stage circuit is an analog circuit.

Integrated circuit, multi-channel transmission apparatus and signal transmission method thereof

A radio frequency identification (RFID) communication system and method is provided to resolve the power-consuming problems of an active RFID tag while operating at a receiving mode in a long duration. A designated channel is established between the reader and the RFID tag, and also the reader sends a designated message so that the actuated active RFID tag can receive the designated messages and dynamically enter into a receiving mode. Therefore, normal communications may be conducted between the reader and the RFID and the usage period or technical performance can be improved as well.

Radio frequency identification communication system and method thereof

A method is provided to update firmware of a radio frequency identification (RFID) reader through a network system, wherein a management host issues an update message to a gateway through the network system, and then depending upon the location where reader firmware update data is stored, either the management host transmits the reader firmware update data through the gateway to each designated RFID reader, or the gateway directly transmits the reader firmware update data to each of the designated RFID readers. A microprocessor of the RFID reader stores the received reader firmware update data to a firmware data storage section of a memory unit thereof.

Method for updating firmware of radio frequency identification reader through network system

A two-way connectivity USB control device and its operation method are disclosed. The present invention solves a problem of the prior art that requires users to manually switch a USB controller between an active mode and a passive mode and set a predetermined time interval as in prior art. The two-way connectivity USB control device detects whether or not there is a voltage input. If the detection result is yes, then the two-way connectivity USB control device is switched to a transmit mode, or else the two-way connectivity USB control device is switched to a transparent mode for accessing data stored in an external device by issuing a control command directly.

Two-way connectivity USB control device and operation method thereof

A method and system is provided to reinforce wireless communication capabilities between multiple network nodes of an wireless network group. The method and system first detects a wireless transmission capability between a first network node and a second network node. When the wireless transmission capability is lower than a threshold value, one set of reinforcing coordinates will be derived by introducing the first geographic information and the second geographic information. Afterwards, move a third network node to a position with the set of reinforcing coordinates to establish an alternative wireless transmission route between the first network note and second network node. Therefore, when an original wireless transmission route between any two network nodes is abnormal, the alternative wireless transmission route will be available in time and reduce the risks of losing transmission signals.

System and method for reinforcing wireless communication capability within wireless network group

A wireless local network reconnecting system and method is provided. The method detects a connection-lost signal generated when a network node of the wireless local network group lost connection. A reconnecting coordinate is calculated according to the connection-lost signal and transmitted to the connection-lost network node through an external communication network. Afterwards, the method guides the connection-lost network node to move to the reconnecting coordinate and reconnect with the wireless local network group wirelessly. Since the external communication network is used to connect with the connection-lost network node, the connection-lost network node is able to reconnect with the wireless local network group through the proposed method.

Wireless local network reconnecting system and method

A system and method are provided for multiple nodes to wirelessly transmit in an Ad-hoc network architecture. First of all, an integration module of the system integrates a multi-node transmission protocol into a reservation column of a data packet. Next, an initial node of the system transmits the integrated data packet. Afterwards, according to the multi-node transmission protocol, one or more bridge node of the system receives the integrated data packet transmitted from the initial node. And finally, according to the multi-node transmission protocol, a destination node of the system receives the integrated data packet transmitted from the bridge node. By means of the proposed system and method, data transmission between multiple nodes is achieved under the Ad-hoc network architecture.

Data packet, system and method for multiple nodes transmitting under AD-HOC network architecture

The present invention discloses a security flash memory which includes a flash memory chip with a plurality of data transmission terminals, and a data encryption device. The data encryption device includes a verifier module with default pass code, a secret key module and a switching module. The verifier module compares a pass code with the default pass code for outputting a control signal. The secret key module is used for data encryption and data decryption. The switching module is connected to the verifier module, the data transmission terminals of the flash memory chip and the secret key module, and may connect or disconnect the data transmission terminals of the flash chip and the secret key module in response to the control signal.

Security flash memory, data encryption device and method for accessing security flash memory

A wireless connection system and method are provided to connect diverse Ad-hoc network groups. A first Ad-hoc network group has a first network node and a first edge node wirelessly connecting with each other. The second Ad-hoc network group has a second network node and a second edge node wirelessly connecting with each other without connecting the first Ad-hoc network group. The first and second edge nodes have multiple wireless modules respectively. One of the wireless modules is used to connect wireless with other network nodes in the same Ad-hoc network group. The rest extra wireless module(s) is used to connect wirelessly with another extra wireless module(s) of the edge node(s) in different Ad-hoc network group(s). Therefore, the independent first and second Ad-hoc network groups are now capable of wirelessly connecting with each other.

System and method for wirelessly connecting diverse Ad-hoc network groups

A cigarette filter tip structure includes a cigarette holder, and a filter base mounted on the bottom of the cigarette holder. The cigarette holder includes a compartment defined therein and having a bottom formed with a shoulder, the compartment having a center defining a compression hole, four L-shaped support bases each mounted in an inner wall of the compartment, and each having a bottom formed with a transversely extending positioning portion. The filter base has a top defining a filter recess for receiving the shoulder of the cigarette holder, and a bottom defining a passage and formed with a mouth suction portion. The filter base includes a plurality of filter pieces each located adjacent to the bottom of the filter recess, a plurality of filter spaces each defined between two adjacent filter pieces and each connecting to the passage, an oil collecting needle mounted in a center of the filter pieces and located under the compression hole, and a protruding ring mounted in the filter base and located between the filter recess and the passage, the protruding ring defining a through hole connecting between the filter spaces and the passage.

Growing community of inventors

Hsinchu, Taiwan

Chih-Wen Cheng