Patents by Inventor Yu-Feng Cheng

Yu-Feng Cheng 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).

  • Publication number: 20050088429
    Abstract: A combined transmission unit for TMDS signals and LVDS signals. First (LVDS) and second (TMDS) transmission units are both coupled to a first set of input terminals. A switching controller, according to a mode selection signal, enables the first transmission unit to transmit the first data on the set of input terminals to first external input units through a pair of first signal lines or enables the second transmission unit to transmit the first data on the set of input terminals to the second external input units through a pair of second signal lines.
    Type: Application
    Filed: October 28, 2004
    Publication date: April 28, 2005
    Inventors: Yu-Feng Cheng, Wen-Bo Liu, Ken-Ming Li, Vai-Hang Au, Zhen-Yu Song
  • Patent number: 6769813
    Abstract: A universal optical fiber plug includes a body, a neck formed on the body, a tube extending out from the neck and an annular sealing ring formed on the neck near the joint with the tube to correspond to the recesses in the socket. A blank plug has a blank plug body, a blank plug neck formed on the blank plug body, a blank plug tube extending out from the blank plug neck, and a sealing ring extending out radially from the blank plug neck. A cap is further formed at a joint of the blank plug body and the blank plug neck to prevent contamination of the filament inside the socket.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: August 3, 2004
    Inventor: Yu-Feng Cheng
  • Patent number: 6659653
    Abstract: An optical fiber plug has an inner sleeve made of a transparent or semi-transparent material. The inner sleeve has a head formed at a front end thereof. A passage is longitudinally defined through the head. A tubular part is formed at a rear end of the inner sleeve. A chamber is defined in the tubular part and in communication with the passage. A flange is formed between the head and the tubular part. A tapering recess of which a cross section is polygonal is defined between the passage and the chamber. An outer sleeve covers on the tubular part of the inner sleeve. A core extends through the passage, the tapering recess, and the chamber.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: December 9, 2003
    Inventor: Yu-Feng Cheng
  • Patent number: 6637946
    Abstract: An adapter for an optical fiber plug has a tubular body. The body has an opening defined through a peripheral wall thereof. A pin is mounted on a front end of the body. The pin has an optical fiber provided therein. A strip is received in the body through the opening. The strip has a hole defined through a central portion and in alignment with the pin, and at least one wing extending from the central portion to a rear end of the body. A housing covers the body. A ring mounted at a rear end of the housing. An optical fiber plug can be inserted in the adapter through the ring for matching a terminal unadapted to the plug.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: October 28, 2003
    Inventor: Yu-Feng Cheng
  • Patent number: 6634798
    Abstract: A dust proof cap includes a holding portion, a flange integrally formed with the holding portion by means of a first neck, an engaging portion integrally formed with the flange by way of a second neck and a plug extending out from a center of the engaging portion to correspond to the through hole of the socket. An indent with a multifaceted inner face is defined in a free end face of the holding portion so that a light is observed from a side of the dust proof cap.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: October 21, 2003
    Inventor: Yu-Feng Cheng
  • Publication number: 20030185521
    Abstract: An optical fiber plug has an inner sleeve made of a transparent or semi-transparent material. The inner sleeve has a head formed at a front end thereof. A passage is longitudinally defined through the head. A tubular part is formed at a rear end of the inner sleeve. A chamber is defined in the tubular part and in communication with the passage. A flange is formed between the head and the tubular part. A tapering recess of which a cross section is polygonal is defined between the passage and the chamber. An outer sleeve covers on the tubular part of the inner sleeve. A core extends through the passage, the tapering recess, and the chamber.
    Type: Application
    Filed: April 1, 2002
    Publication date: October 2, 2003
    Inventor: Yu-Feng Cheng
  • Publication number: 20030174972
    Abstract: An adapter for an optical fiber plug has a tubular body. The body has an opening defined through a peripheral wall thereof. A pin is mounted on a front end of the body. The pin has an optical fiber provided therein. A strip is received in the body through the opening. The strip has a hole defined through a central portion and in alignment with the pin, and at least one wing extending from the central portion to a rear end of the body. A housing covers the body. A ring mounted at a rear end of the housing. An optical fiber plug can be inserted in the adapter through the ring for matching a terminal unadapted to the plug.
    Type: Application
    Filed: March 14, 2002
    Publication date: September 18, 2003
    Inventor: Yu-Feng Cheng
  • Patent number: 6597832
    Abstract: An optical fiber selector includes a housing, a rod pivotally mounted inside the housing, a switch controlling the pivotal movement of the rod, a sliding plate connected to a free end of the rod. An in/out port is mounted on a front side of the housing to be connected with a main optical fiber, and multiple connecting ports are also mounted on the front side and adjacent to the in/out port to be respectively connected to multiple branch optical fibers. The sliding plate has a connecting head connected to the in/out port via an internal optical fiber, and the connecting head is able to be selectively connected with one of the connecting ports. Therefore, the user is able to select which branch optical fiber is to be connected with the main optical fiber.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: July 22, 2003
    Inventor: Yu-Feng Cheng
  • Publication number: 20030133669
    Abstract: An optical fiber plug includes a body having a channel defined through the body, at least one set of recesses oppositely defined in a face of the body, and a clamping portion formed between the channel and a bottom face defining each of the at least one set of recesses. The deformation of the clamping portion is able to retain an insulating layer of an optical fiber.
    Type: Application
    Filed: January 14, 2002
    Publication date: July 17, 2003
    Inventor: Yu-Feng Cheng
  • Patent number: 6592267
    Abstract: An optical fiber plug includes a body having a channel defined through the body, at least one set of recesses oppositely defined in a face of the body, and a clamping portion formed between the channel and a bottom face defining each of the at least one set of recesses. The deformation of the clamping portion is able to retain an insulating layer of an optical fiber.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: July 15, 2003
    Inventor: Yu-Feng Cheng
  • Publication number: 20030108279
    Abstract: An optical fiber selector includes a housing, a rod pivotally mounted inside the housing, a switch controlling the pivotal movement of the rod, a sliding plate connected to a free end of the rod. An in/out port is mounted on a front side of the housing to be connected with a main optical fiber, and multiple connecting ports are also mounted on the front side and adjacent to the in/out port to be respectively connected to multiple branch optical fibers. The sliding plate has a connecting head connected to the in/out port via an internal optical fiber, and the connecting head is able to be selectively connected with one of the connecting ports. Therefore, the user is able to select which branch optical fiber is to be connected with the main optical fiber.
    Type: Application
    Filed: December 7, 2001
    Publication date: June 12, 2003
    Inventor: Yu-Feng Cheng
  • Publication number: 20030099442
    Abstract: A dust proof cap includes a holding portion, a flange integrally formed with the holding portion by means of a first neck, an engaging portion integrally formed with the flange by way of a second neck and a plug extending out from a center of the engaging portion to correspond to the through hole of the socket. An indent with a multifaceted inner face is defined in a free end face of the holding portion so that a light is observed from a side of the dust proof cap.
    Type: Application
    Filed: November 26, 2001
    Publication date: May 29, 2003
    Inventor: Yu-Feng Cheng
  • Publication number: 20030077046
    Abstract: A universal optical fiber plug includes a body, a neck formed on the body, a tube extending out from the neck and provided with an annular sealing ring formed on the neck near the joint with the tube to correspond to the recesses in the socket. A cap is further formed at a joint of the body and the neck to prevent contamination of the filament inside the socket.
    Type: Application
    Filed: October 22, 2001
    Publication date: April 24, 2003
    Inventor: Yu-Feng Cheng
  • Publication number: 20030039451
    Abstract: A plug for an optical fiber has an inner tube for receiving an optical fiber. A middle tube covers the inner tube and is formed by injection molding. The middle tube has an insulating front part covering a front end of the inner tube. An outer tube covers the middle tube.
    Type: Application
    Filed: August 24, 2001
    Publication date: February 27, 2003
    Inventor: Yu-Feng Cheng
  • Patent number: 6525782
    Abstract: An adapting connector for a video machine has an S terminal, a VIDEO terminal, and two filter units connected to the S terminal and the VIDEO terminal. The filter units of the adapting connector eliminate noise from the transmitting signal between the S terminal and the VIDEO terminal to output a high quality image.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: February 25, 2003
    Inventor: Yu-Feng Cheng
  • Patent number: 6524015
    Abstract: An adaptor for an optical cable terminal consists of an outer tube that contains an interior optical cable and is able to be used with a toslink socket provided in a household appliance, a clip contained in the outer tube, and an inner tube contained also in the outer tube. If a socket provided in a household appliance is for a 3.5 &PHgr; optical cable terminal, the terminal can be inserted into the socket directly. However, if the socket is a toslink type, the terminal can be inserted into a central channel of the inner tube and then the adaptor can be inserted into the toslink. Therefore, with the adaptor of the invention, the 3.5 &PHgr; terminal of an optical cable is able to be used with not only a 3.5 &PHgr; socket but also with a toslink socket provided in a household appliance.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: February 25, 2003
    Inventor: Yu-Feng Cheng
  • Publication number: 20030002810
    Abstract: An illuminating optical fiber plug has a connector made of a transparent material and the connector is received in the housing. The connector has a first end and a second end. The first end extends out of the housing and aligns with an LED in a socket corresponding to the illuminating optical fiber plug. The second end connected to the optical fiber forms an illuminating end on an outer surface of the housing. By such an arrangement, when the illuminating optical fiber plug is plugged in the socket, light signals generated by the LED are able to be observed.
    Type: Application
    Filed: July 2, 2001
    Publication date: January 2, 2003
    Inventor: Yu-Feng Cheng
  • Patent number: D470818
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: February 25, 2003
    Inventor: Yu-Feng Cheng
  • Patent number: D471155
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: March 4, 2003
    Inventor: Yu-Feng Cheng
  • Patent number: RE38011
    Abstract: An optical fiber connector includes a head lid, a connection head, an interior tube, and an exterior tube combined with each other to enclose an end of an optical fiber. The optical fiber connector in accordance with the present invention includes only a few components. In addition, each component of the optical fiber connector is simple. Accordingly, such an optical fiber connector is easily manufactured, and the manufacture cost is low.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: March 4, 2003
    Inventor: Yu-Feng Cheng