Patents by Inventor Chalermphol Apichaichalermwongse

Chalermphol Apichaichalermwongse 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: 8724524
    Abstract: When communicating with a second wireless station, a first wireless station judges, based on link-related information received from the second wireless station and link-related information extracted from a signal transmitted by a fourth wireless station, whether a transmission link from the third wireless station to the fourth wireless station and a transmission link from the first wireless station to the second wireless station can be concurrently established without interference with each other. If judging affirmatively, the first wireless station transmits a signal to the second wireless station in synchronization with a signal transmitted by the third wireless station to the fourth wireless station.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: May 13, 2014
    Assignee: Panasonic Corporation
    Inventors: Yoshio Urabe, Kenji Miyanaga, Kazuhiro Ando, Chalermphol Apichaichalermwongse, Tsutomu Mukai
  • Patent number: 8311165
    Abstract: A reception station 1b compares its BSSID with BSSID included in a signal that has arrived thereat. As BSSIDs included in signals transmitted by interfering stations 1c and 1d both match BSSID of the reception station 1b, the reception station 1b identifies each of the interfering stations 1c and 1d as a non-suppression target transmission source. As neither of BSSIDs included in signals transmitted by interfering stations 2a and 2b matches BSSID of the reception station 1b, the reception station 1b identifies each of the interfering stations 2a and 2b as a suppression target transmission source. The reception station 1b uses characteristic amounts of signals that are associated with the interfering stations (i.e., suppression target transmission sources) 2a and 2b and that have been measured in the past as characteristic amounts of interfering signals that are used to suppress the interfering signals from a received signal.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: November 13, 2012
    Assignee: Panasonic Corporation
    Inventors: Hiroshi Takahashi, Chalermphol Apichaichalermwongse, Kenji Miyanaga, Yoshio Urabe, Kazuhiro Ando, Hiroshi Hayashino
  • Publication number: 20120020257
    Abstract: When communicating with a second wireless station, a first wireless station judges, based on link-related information received from the second wireless station and link-related information extracted from a signal transmitted by a fourth wireless station, whether a transmission link from the third wireless station to the fourth wireless station and a transmission link from the first wireless station to the second wireless station can be concurrently established without interference with each other. If judging affirmatively, the first wireless station transmits a signal to the second wireless station in synchronization with a signal transmitted by the third wireless station to the fourth wireless station.
    Type: Application
    Filed: September 15, 2011
    Publication date: January 26, 2012
    Inventors: Yoshio URABE, Kenji MIYANAGA, Kazuhiro ANDO, Chalermphol APICHAICHALERMWONGSE, Tsutomu MUKAI
  • Patent number: 8040837
    Abstract: When communicating with a second wireless station, a first wireless station judges, based on link-related information received form the second wireless station and link-related information extracted from a signal transmitted by a fourth wireless station, whether a transmission link from the third wireless station to the fourth wireless station and a transmission link from the first wireless station to the second wireless station can be concurrently established without interference with each other. If judging affirmatively, the first wireless station transmits a signal to the second wireless station in synchronization with a signal transmitted by the third wireless station to the fourth wireless station.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: October 18, 2011
    Assignee: Panasonic Corporation
    Inventors: Yoshio Urabe, Kenji Miyanaga, Kazuhiro Ando, Chalermphol Apichaichalermwongse, Tsutomu Mukai
  • Publication number: 20090296591
    Abstract: When communicating with a second wireless station, a first wireless station judges, based on link-related information received form the second wireless station and link-related information extracted from a signal transmitted by a fourth wireless station, whether a transmission link from the third wireless station to the fourth wireless station and a transmission link from the first wireless station to the second wireless station can be concurrently established without interference with each other. If judging affirmatively, the first wireless station transmits a signal to the second wireless station in synchronization with a signal transmitted by the third wireless station to the fourth wireless station.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 3, 2009
    Inventors: Yoshio Urabe, Kenji Miyanaga, Kazuhiro Ando, Chalermphol Apichaichalermwongse, Tsutomu Mukai
  • Publication number: 20090147893
    Abstract: A reception station 1b compares its BSSID with BSSID included in a signal that has arrived thereat. As BSSIDs included in signals transmitted by interfering stations 1c and 1d both match BSSID of the reception station 1b, the reception station 1b identifies each of the interfering stations 1c and 1d as a non-suppression target transmission source. As neither of BSSIDs included in signals transmitted by interfering stations 2a and 2b matches BSSID of the reception station 1b, the reception station 1b identifies each of the interfering stations 2a and 2b as a suppression target transmission source. The reception station 1b uses characteristic amounts of signals that are associated with the interfering stations (i.e., suppression target transmission sources) 2a and 2b and that have been measured in the past as characteristic amounts of interfering signals that are used to suppress the interfering signals from a received signal.
    Type: Application
    Filed: May 9, 2007
    Publication date: June 11, 2009
    Inventors: Hiroshi Takahashi, Chalermphol Apichaichalermwongse, Kenji Miyanaga, Yoshio Urabe, Kazuhiro Ando, Hiroshi Hayashino
  • Patent number: 7460485
    Abstract: The presented invention provides methods and apparatus to generate a efficient medium dedication schedule which give wireless medium the ability to serve real-time and non real-time application concurrently and still be able to maintain the QoS as requested by real-time application. Furthermore, it also presents methods for implementing buffer in an efficient matter in order to complement the advantage introduced by burst transmission and burst acknowledgement.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: December 2, 2008
    Assignee: Panasonic Corporation
    Inventors: Pek Yew Tan, Wei Lih Lim, Yasuo Harada, Chalermphol Apichaichalermwongse, Kazuhiro Ando
  • Publication number: 20080043731
    Abstract: A conventional packet frame includes a MAC header, one MAC service data unit (MSDU) and a frame FCS. This frame is repeated to send a plurality of MSDUs. A proposed packet frame includes a MAC header, a plurality of MSDUs and a frame FCS. A unique bit pattern is provided in the MAC header to distinguish the proposed packet frame from the conventional packet frame. Thus, the total data stream can be shortened.
    Type: Application
    Filed: February 2, 2005
    Publication date: February 21, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Wei Lih Lim, Pek Yew Tan, Chalermphol Apichaichalermwongse, Kazuhiro Ando, Yasuo Harada
  • Publication number: 20070183515
    Abstract: The invention is to improve the throughput for a wireless transmission. Multiple antennas are activated in the same frequency at the same time to facilitate parallel transmission. A systematic processes are provided to achieve high throughput transmission.
    Type: Application
    Filed: February 25, 2005
    Publication date: August 9, 2007
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Wei Lih Lim, Pek Yew Tan, Chalermphol Apichaichalermwongse, Kazuhiro Ando, Yasuo Harada
  • Publication number: 20060099956
    Abstract: The present invention provides a method for transmitting data stream via wireless medium for contention based medium access across a wireless network having a plurality of stations and an access point communicating to the stations via wireless medium. The method includes: (i) transmitting data stream from the station according to prescheduled wireless medium occupancy reservation for the station within only prescheduled medium occupancy period of a selective contention period; (ii) performing a contention between the stations for wireless medium occupancy for a contention successful station to transmit data stream within only contention medium occupancy period of the selective contention period; (iii) transmitting data stream from the contention successful station after the contention; and (iv) prescheduling a wireless medium occupancy reservation for the contention successful station to transmit within a prescheduled medium occupancy period of next selective contention period.
    Type: Application
    Filed: January 9, 2004
    Publication date: May 11, 2006
    Inventors: Yasuo Harada, Kazuhiro Ando, Chalermphol Apichaichalermwongse, Pek Tan, Wei Lim, Rahul Malik
  • Publication number: 20050190771
    Abstract: The presented invention provides methods and apparatus to generate a efficient medium dedication schedule which give wireless medium the ability to serve real-time and non real-time application concurrently and still be able to maintain the QoS as requested by real-time application. Furthermore, it also presents methods for implementing buffer in an efficient matter in order to complement the advantage introduced by burst transmission and burst acknowledgement.
    Type: Application
    Filed: September 5, 2003
    Publication date: September 1, 2005
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Pek Tan, Wei Lim, Yasuo Harada, Chalermphol Apichaichalermwongse, Kazuhiro Ando