Patents by Inventor His-Yuan Lai

His-Yuan Lai 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).

  • Tri-functional dual earphone device
    Patent number: 6771780
    Abstract: A tri-functional dual earphone device is disclosed. The structure includes an earphone device and a hand free receiver of the earphone device with circuit structure therein. One end of the earphone device is installed with a left earphone and a right earphone which are connected by a lead, and a hand free receiver suitable. A microphone, a volume control switch for adjusting volume freely, and a function selecting switch are installed in the hand free receiver. Another end of the earphone device is connected to a joint through the lead so as to provide for various mainframes, such as mobile phones (CDMA, TDMA, PHS, GSM, AMPS), digital cameras, digital TVs, MP3, GPRS, PDAs and other electronic devices or communication devices. Moreover, the earphone device has a freely moveable clip which are appended to the lead for clamping to the user.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: August 3, 2004
    Inventors: Chi-Lin Hong, His-Yuan Lai
  • Tri-functional dual earphone device
    Publication number: 20030198355
    Abstract: A tri-functional dual earphone device is disclosed. The structure includes an earphone device and a hand free receiver of the earphone device with circuit structure therein. One end of the earphone device is installed with a left earphone and a right earphone which are connected by a lead, and a hand free receiver suitable. A microphone, a volume control switch for adjusting volume freely, and a function selecting switch are installed in the hand free receiver. Another end of the earphone device is connected to a joint through the lead so as to provide for various mainframes, such as mobile phones (CDMA, TDMA, PHS, GSM, AMPS), digital cameras, digital TVs, MP3, GPRS, PDAs and other electronic devices or communication devices. Moreover, the earphone device has a freely moveable clip which are appended to the lead for clamping to the user.
    Type: Application
    Filed: April 22, 2002
    Publication date: October 23, 2003
    Inventors: Chi-Lin Hong, His-Yuan Lai
  • Hanging type earphone
    Patent number: D464943
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: October 29, 2002
    Inventor: His-Yuan Lai