Patents by Inventor Jia-Ching Shen
Jia-Ching Shen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 9195469Abstract: The present invention discloses a network apparatus and enabling method thereof. During the procedure of voltage biasing or host booting, an enabling signal generated in this network apparatus is provided for enabling the internal application circuit at first. At the time of data connection between the network apparatus and a corresponding host apparatus, the host apparatus is able to enable or disable the application circuit of the network apparatus via a predetermined pin.Type: GrantFiled: August 19, 2011Date of Patent: November 24, 2015Assignee: REALTEK SEMICONDUCTOR CORP.Inventors: Chih-Fu Tsai, Jia-Ching Shen
-
Patent number: 9081570Abstract: A network access device is disclosed, having a transceiving circuit, a demodulation circuit, and a control circuit. The transceiving circuit is used to receive network signals. The demodulation circuit is coupled with the transceiving circuit and used to generate data frames according to the network signals. The control circuit is coupled with the demodulation circuit and used to wake up one or more components of an electronic device when at least two fields of the data frame match predetermined values, or when the data frames are received in a predetermined order.Type: GrantFiled: November 2, 2012Date of Patent: July 14, 2015Assignee: REALTEK SEMICONDUCTOR CORP.Inventors: Ting-Ying Li, Kuang-Yu Yen, Jia-Ching Shen, Yu-Chen Liu
-
Patent number: 9052921Abstract: A universal serial bus (USB) network interface controller and an operation mode switching method thereof are provided. The USB network interface controller determines an access point network band of a wireless network access point with which the USB network interface controller intends to connect, and switches from a first USB operation mode to a second USB operation mode to transmit data with a host so that an operation frequency of the USB network interface controller falls outside the access point network band. Afterwards, the USB network interface controller adjusts an operation network band to be the same as the access point network band, and exchanges information with the wireless network access point.Type: GrantFiled: April 1, 2014Date of Patent: June 9, 2015Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Chun-Chu Chang, Kuang-Yu Yen, Jia-Ching Shen, Yu-Chen Liu
-
Patent number: 9032227Abstract: A wireless communication apparatus is adapted for communication between a host and a communication device. The wireless communication apparatus includes a host transmission interface adapted to be coupled to the host, a host transmission interface controller coupled to the host transmission interface, a wireless transmission interface adapted for communicating with the communication device so as to receive packet data therefrom, a wireless transmission interface controller coupled to the wireless transmission interface, and a processor coupled between the host transmission interface controller and the wireless transmission interface controller. The processor is operable to control a power state of the host transmission interface controller to enter a power consuming mode selected in accordance with a traffic volume.Type: GrantFiled: January 22, 2010Date of Patent: May 12, 2015Assignee: RealTek Semiconductor Corp.Inventors: Jia-Ching Shen, Chun-Wei Kuo
-
Patent number: 8976653Abstract: A communication device may include a transmitting circuit for transmitting packets from a first communication device to a second communication device and a processor in the first communication device and coupled with the transmitting circuit. The processor may evaluate the packet receipt status information to identify a packet receipt characteristic associated with the second communication device and control data packet transmission from the first communication device to the second communication device based on the packet receipt characteristic associated with the second communication device.Type: GrantFiled: February 4, 2011Date of Patent: March 10, 2015Assignee: Realtek Semiconductor CorporationInventors: Hsu-Hui Wang, Kuang-Yu Yen, Jia-Ching Shen
-
Publication number: 20150058500Abstract: A communication apparatus includes a host, a signal receiving apparatus arranged to receive a wireless signal, and a connecting device coupled between the host and the signal receiving apparatus. The connecting device is arranged to transmit a transmission signal between the host and the signal receiving apparatus. The signal receiving apparatus refers to the state of the received wireless signal to control the connecting device to selectively enter a second operation mode from a first operation mode to reduce the interference upon the wireless signal.Type: ApplicationFiled: August 21, 2014Publication date: February 26, 2015Inventors: Chun-Chu Chang, Chia-Yi Liu, Kuang-Yu Yen, Jia-Ching Shen
-
Patent number: 8856558Abstract: An electronic apparatus has a stand-by mode. The electronic apparatus includes a first circuit, a second circuit and a third circuit. The first circuit has an interface and transfers data to an external device. The second circuit has a processor and sets a first power supplying mode of the first circuit. The third circuit sets a second circuit power supplying mode of the second circuit and sets a second power supply mode of the first circuit when the second circuit is disabled. The processor selects a first circuit power supplying mode from power supplying modes of the first circuit as the second power supplying mode before the second circuit is disabled.Type: GrantFiled: June 24, 2011Date of Patent: October 7, 2014Assignee: Realtek Semiconductor Corp.Inventors: Chih-Fu Tsai, Jia-Ching Shen
-
Publication number: 20140297899Abstract: A universal serial bus (USB) network interface controller and an operation mode switching method thereof are provided. The USB network interface controller determines an access point network band of a wireless network access point with which the USB network interface controller intends to connect, and switches from a first USB operation mode to a second USB operation mode to transmit data with a host so that an operation frequency of the USB network interface controller falls outside the access point network band. Afterwards, the USB network interface controller adjusts an operation network band to be the same as the access point network band, and exchanges information with the wireless network access point.Type: ApplicationFiled: April 1, 2014Publication date: October 2, 2014Applicant: REALTEK SEMICONDUCTOR CORPORATIONInventors: Chun-Chu CHANG, Kuang-Yu YEN, Jia-Ching SHEN, Yu-Chen LIU
-
Patent number: 8538359Abstract: A network system includes a wireless network device, a network control device, and a first controller. The wireless network device includes an RF unit for transmitting/receiving frames and a first connection interface unit. The network control device includes a second connection interface unit, wherein the second connection interface unit is coupled to the first connection interface unit via a transmission connection, in order to perform data transmission with the first connection interface unit. When there is no data transmitted via the transmission connection, the first controller turns off at least one of power supplies of the first connection interface unit and the second connection interface unit. The first controller may be disposed in the network control device or the wireless network device.Type: GrantFiled: April 23, 2010Date of Patent: September 17, 2013Assignee: Realtek Semiconductor Corp.Inventors: Kuang-Yu Yen, Yi-Shou Hsu, Lien-Pang Liao, Jia-Ching Shen
-
Patent number: 8514781Abstract: The present invention provides a method for adjusting transmission power of a communication system having a first terminal and a second terminal. In accordance with a preferred embodiment, the method comprises steps of: (a) repeatedly transmitting a detecting packet from the first terminal to the second terminal by sequentially using one of a variety of transmission powers; (b) receiving a responding packet from the second terminal, wherein the responding packet corresponds to the one of the variety of transmission powers; and (c) choosing at least one from the variety of the transmission powers for transmitting at least a data packet to the second terminal therewith based on the responding packet from the second terminal.Type: GrantFiled: July 14, 2010Date of Patent: August 20, 2013Assignee: Realtek Semiconductor Corp.Inventors: Der-Zheng Liu, Kuang-Yu Yen, Jia-Ching Shen
-
Patent number: 8179925Abstract: The invention discloses a sink device and a signal receiving method thereof, applicable to wireless local area network. The sink device receives a plurality of beacon signals, synchronizes the beacon output signal generated by itself with the operating clock of the source device according to the above-mentioned timing synchronization data. And the sink device receives the plurality of beacon signals according to this calibrated synchronization clock.Type: GrantFiled: July 7, 2008Date of Patent: May 15, 2012Assignee: Realtek Semiconductor Corp.Inventors: Chen-Chih Huang, Jia-Ching Shen
-
Publication number: 20120054482Abstract: The present invention discloses a network apparatus and enabling method thereof. During the procedure of voltage biasing or host booting, an enabling signal generated in this network apparatus is provided for enabling the internal application circuit at first. At the time of data connection between the network apparatus and a corresponding host apparatus, the host apparatus is able to enable or disable the application circuit of the network apparatus via a predetermined pin.Type: ApplicationFiled: August 19, 2011Publication date: March 1, 2012Applicant: REALTEK SEMICONDUCTOR CORP.Inventors: Chih-Fu Tsai, Jia-Ching Shen
-
Publication number: 20110316517Abstract: The present invention relates to an electronic apparatus having stand-by mode. The electronic apparatus comprises: a first circuit, comprising an interface and transferring data to an external device; a second circuit, comprising a processor and setting a first power supplying mode of the first circuit; and a third circuit, setting a second circuit power supplying mode of the second circuit and setting a second power supply mode of the first circuit when the second circuit is disabled; wherein the processor selects a first circuit power supplying mode from power supplying modes of a plurality of first circuits as the second power supplying mode before the second circuit is disabled.Type: ApplicationFiled: June 24, 2011Publication date: December 29, 2011Applicant: REALTEK SEMICONDUCTOR CORP.Inventors: Chih-Fu Tsai, Jia-Ching Shen
-
Publication number: 20110199993Abstract: A channel assignment method includes the following steps: settling a beginning time point and a terminating time point for communicating with a target client operated in an active mode; and performing a channel reservation mechanism for the target client at a first time point, wherein the first time point is earlier than the beginning time point.Type: ApplicationFiled: February 11, 2011Publication date: August 18, 2011Inventors: Kuang-Yu Yen, Jia-Ching Shen, Chun-Wei Kuo
-
Publication number: 20110194440Abstract: A communication device may include a transmitting circuit for transmitting packets from a first communication device to a second communication device and a processor in the first communication device and coupled with the transmitting circuit. The processor may evaluate the packet receipt status information to identify a packet receipt characteristic associated with the second communication device and control data packet transmission from the first communication device to the second communication device based on the packet receipt characteristic associated with the second communication device.Type: ApplicationFiled: February 4, 2011Publication date: August 11, 2011Inventors: Hsu-Hui Wang, Kuang-Yu Yen, Jia-Ching Shen
-
Publication number: 20110013561Abstract: The present invention provides a method for adjusting transmission power of a communication system having a first terminal and a second terminal. In accordance with a preferred embodiment, the method comprises steps of: (a) repeatedly transmitting a detecting packet from the first terminal to the second terminal by sequentially using one of a variety of transmission powers; (b) receiving a responding packet from the second terminal, wherein the responding packet corresponds to the one of the variety of transmission powers; and (c) choosing at least one from the variety of the transmission powers for transmitting at least a data packet to the second terminal therewith based on the responding packet from the second terminal.Type: ApplicationFiled: July 14, 2010Publication date: January 20, 2011Applicant: Realtek Semiconductor CorporationInventors: Der-Zheng Liu, Kuang-Yu Yen, Jia-Ching Shen
-
Publication number: 20100273519Abstract: A network system includes a wireless network device, a network control device, and a first controller. The wireless network device includes an RF unit for transmitting/receiving frames and a first connection interface unit. The network control device includes a second connection interface unit, wherein the second connection interface unit is coupled to the first connection interface unit via a transmission connection, in order to perform data transmission with the first connection interface unit. When there is no data transmitted via the transmission connection, the first controller turns off at least one of power supplies of the first connection interface unit and the second connection interface unit. The first controller may be disposed in the network control device or the wireless network device.Type: ApplicationFiled: April 23, 2010Publication date: October 28, 2010Inventors: Kuang-Yu Yen, Yi-Shou Hsu, Lien-Pang Liao, Jia-Ching Shen
-
Publication number: 20100191992Abstract: A wireless communication apparatus is adapted for communication between a host and a communication device. The wireless communication apparatus includes a host transmission interface adapted to be coupled to the host, a host transmission interface controller coupled to the host transmission interface, a wireless transmission interface adapted for communicating with the communication device so as to receive packet data therefrom, a wireless transmission interface controller coupled to the wireless transmission interface, and a processor coupled between the host transmission interface controller and the wireless transmission interface controller. The processor is operable to control a power state of the host transmission interface controller to enter a power consuming mode selected in accordance with a traffic volume.Type: ApplicationFiled: January 22, 2010Publication date: July 29, 2010Applicant: REALTEK SEMICONDUCTOR CORPORATIONInventors: Jia-Ching Shen, Chun-Wei Kuo
-
Publication number: 20090010192Abstract: The invention discloses a sink device and a signal receiving method thereof, applicable to wireless local area network. The sink device receives a plurality of beacon signals, synchronizes the beacon output signal generated by itself with the operating clock of the source device according to the above-mentioned timing synchronization data. And the sink device receives the plurality of beacon signals according to this calibrated synchronization clock.Type: ApplicationFiled: July 7, 2008Publication date: January 8, 2009Inventors: Chen-Chih Huang, Jia-Ching Shen
-
Patent number: 7236786Abstract: Methods and systems for providing fast handoff in WLAN-like communications system construct a caching candidate set based upon a weighted handoff tendency coefficient. The weighted handoff tendency coefficient is based upon the handoff matrix and the weighting factor. The handoff matrix is an adaptive two-dimensional array that provides a list of nearby access points relative to a mobile station and the weighting factor is a value that prioritizes the nearby access points based upon a signal quality indication. A home access point, once it is triggered to initialize proactive caching, provides the caching candidate set with registration data of the mobile station before a transfer of a connection between the home access point and one of the access points on the caching candidate set.Type: GrantFiled: June 22, 2004Date of Patent: June 26, 2007Assignee: Industrial Technology Research InstituteInventors: Jia-Ching Shen, Yih-Shen Chen, Chung-Ju Chang, Yung-Han Chen, Yi-Ting Wang, Meng-Chun Chang