Patents Assigned to Avago Technologies ECBU IP (Singapore) Pte. Ltd.
  • System and method for labeling feature clusters in frames of image data for optical navigation
    Patent number: 8094937
    Abstract: A system and method for labeling feature clusters in frames of image data for optical navigation uses distances between feature clusters in a current frame of image data and feature clusters in a previous frame of image data to label the feature clusters in the current frame of image data using identifiers associated with the feature cluster in the previous frame of image data that have been correlated with the feature clusters in the current frame of image data.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: January 10, 2012
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Edward Kah Ching Teoh, Zi Hao Tan
  • Narrowbody coil isolator
    Patent number: 8093983
    Abstract: Disclosed herein are various embodiments of narrowbody coil isolators containing multiple coil transducers, where integrated circuits are not stacked vertically over the coil transducers. The disclosed coil isolators provide high voltage isolation and high voltage breakdown performance characteristics in small packages that provide a high degree of functionality at a low price.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 10, 2012
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Julie Fouquet, Dominique Ho
  • Light source
    Patent number: 8089086
    Abstract: Light sources are disclosed herein. An embodiment of a light sources comprises a substrate having a first surface and a second surface located opposite the first surface. At least one first electrically conductive layer is affixed to the first surface of the substrate and partially covering the first surface of the substrate. At least one second electrically conductive layer is affixed to the first surface of the substrate and partially covering the first surface of the substrate. A light emitter is affixed to the first surface of the substrate in an area not covered by either of the at least one first electrically conductive layer or the at least one second electrically conductive layer.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: January 3, 2012
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Siang Ling Oon, Chin Nyap Tan, Kee Yean Ng
  • System and method for performing optical navigation using a compact optical element
    Patent number: 8089466
    Abstract: A system and method for performing optical navigation uses an illumination optical element positioned between a light source and a navigation surface to bend and collimate a beam of light from the light source, which may be originally emitted in a direction normal to the navigation surface. The illumination optical element includes a concave surface to receive the beam of light from the light source and a convex surface to transmit the beam of light from the illumination optical element toward the navigation surface. The beam of light incident on the navigation surface produces light, which is received at an image sensor array to capture frames of image data for displacement estimation.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: January 3, 2012
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventor: George E. Smith
  • LFCC package with a reflector cup surrounded by a single encapsulant
    Patent number: 8089075
    Abstract: In an embodiment, the invention provides a LFCC package comprising first, second and third lead frames, a light source, and an encapsulant. The first lead frame comprises two tongues and a reflector cup. The first, second and third lead frames are attached to the encapsulant. The light source is mounted at the bottom of the inside of the reflector cup. The light source is electrically connected to the second and third lead frames by wire bonds. The reflector cup is surrounded on at least four sides by the encapsulant, the encapsulant being an integral single piece structure.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: January 3, 2012
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Ng Keat Chuan, Yong Lig Yi, Keh Kean Loo, Tan Kheng Leng
  • Capacitive Touchscreen Signal Acquisition without Panel Reset
    Publication number: 20110310054
    Abstract: Various embodiments of readout circuits are disclosed where no touchscreen or touch panel recharge is required, and the amount of time available for signal acquisition is twice that relative to prior art touchscreen or touch panel readout circuits. Voltage offsets of the integrating amplifiers may be compensated for by notch filtering signals stored in readout circuit capacitors. Some embodiments of readout circuits disclosed herein permit large dynamic range capacitive touchscreen or touch panel signals to be processed, and do not require panel reset. Readout circuits are disclosed that permit doubling of the signal acquisition rate and pre-filtering of acquired touch panel signals for improved immunity from harmonic EMI. Signal acquisition and temporary storage may be carried out using the same capacitors in such readout circuits.
    Type: Application
    Filed: December 1, 2010
    Publication date: December 22, 2011
    Applicant: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventor: Vitali Souchkov
  • Optical navigation device with surface and free space navigation
    Patent number: 8081162
    Abstract: An optical navigation device for operation in a surface navigation mode and a free space navigation mode is described. One embodiment of the optical navigation device includes a microcontroller, a surface navigation sensor, and a free space navigation sensor. The surface and free space navigation sensors are coupled to the microcontroller. The microcontroller is configured to process a movement of the optical navigation device. The surface navigation sensor is configured to generate a surface navigation signal in response to a surface navigation image. The free space navigation sensor is configured to generate a free space navigation signal in response to a free space navigation image. Embodiments of the optical navigation device facilitate an integrated optical solution to provide desktop navigation and scene navigation in a single optical navigation device.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: December 20, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Edward Kah Ching Teoh, Yat Kheng Leong, Jin Kiong Ang, Wui Pin Lee, Ban Kuan Koay
  • Programmable lift response for an optical navigation device
    Patent number: 8081159
    Abstract: An optical pointing device comprising an optical navigation sensor and an adjustment module for adjusting an operational height of the optical navigation sensor is provided in one embodiment. In another embodiment, an optical pointing device comprising a housing and an optical navigation sensor contained in the housing is provided where the optical navigation sensor is configured to provide movement information to a processing system to cause a pointer to continue moving in response to detecting that the housing has been lifted from a navigation surface.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: December 20, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: John S. Wenstrand, Roopinder S. Grewal, Vincent C. Moyer
  • LIGHT GUIDE HAVING A CAPACITIVE SENSING GRID AND RELATED METHODOLOGY
    Publication number: 20110304484
    Abstract: An electronic device may include a keypad having a plurality of predefined key areas and a light guide that may be used to illuminate the key areas. The light guide may include a capacitive sensing grid to sense user contact relative to the keypad.
    Type: Application
    Filed: June 10, 2010
    Publication date: December 15, 2011
    Applicant: Avago Technologies ECBU IP ( Singapore) Pte. Ltd.
    Inventors: Sian Tatt Lee, Choon Guan Ko, Fook Chuin Ng, Muh Fong Chung
  • Small Low-Profile Optical Proximity Sensor
    Publication number: 20110297831
    Abstract: In an embodiment, the invention provides a proximity sensor including a transmitter die, a receiver die, an ASIC die, a lead frame, wire bonds, a first transparent encapsulant, a second transparent encapsulant, and an opaque encapsulant. The transmitter die, the receiver die and the ASIC die are attached to portions of the lead frame. Wire bonds electrically connect the transmitter die, the receiver die, the ASIC die, and the lead frame. The first transparent encapsulant covers the receiver die, the ASIC die, the wire bonds, and a portion of the lead frame. The second transparent encapsulant covers the transmitter die, the wire bonds, and a portion of the lead frame. The opaque encapsulant covers portions of the first and second encapsulants and a portion of the lead frame.
    Type: Application
    Filed: June 8, 2010
    Publication date: December 8, 2011
    Applicant: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Yufeng Yao, Chi Boon Ong, Rani Saravanan
  • Proximity Sensor
    Publication number: 20110297832
    Abstract: A proximity sensor includes a printed circuit board (PCB); a first cup and a second cup embedded in the PCB; an electromagnetic radiation transmitter operably mounted in the first cup; and an electromagnetic radiation receiver operably mounted in the second cup.
    Type: Application
    Filed: June 8, 2010
    Publication date: December 8, 2011
    Applicant: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Yufeng Yao, Sze Ping Ong, Wee Sin Tan
  • SYSTEM AND METHOD FOR CONTROLLING A POWER AMPLIFIER USING A PROGRAMMABLE RAMP CIRCUIT
    Publication number: 20110298540
    Abstract: A system and method for controlling a power amplifier using a programmable ramp circuit involves receiving an input bias current at a programmable ramp circuit, generating an output bias current based on the input bias current using the programmable ramp circuit, and transmitting the output bias current from the programmable ramp circuit to a power amplifier for amplifying a radio frequency signal.
    Type: Application
    Filed: June 4, 2010
    Publication date: December 8, 2011
    Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.
    Inventors: Huaimao Sheng, Larry B. Li
  • Optical encoder with integrated monitor
    Patent number: 8068040
    Abstract: A sensor head for sensing light modulated by a moveable member, such as a code wheel or code strip, in an optical encoder. The sensor head has at least one monitor optical sensor and a primary optical sensor positioned to receive light modulated by a modulation track on the moveable member. The monitor optical sensor provides a monitor signal that is compared in a signal comparator to the output from the primary optical sensor to detect light at the primary sensor.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: November 29, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Weng Fei Wong, Chee Foo Lum, Siow Ming Tan
  • Temperature compensation circuit and method
    Patent number: 8067992
    Abstract: Disclosed are various embodiments of temperature-compensated relaxation oscillator circuits that may be fabricated using conventional CMOS manufacturing techniques. The relaxation oscillator circuits described herein exhibit superior low temperature coefficient performance characteristics, and do not require the use of expensive off-chip high precision resistors to effect temperature compensation. Positive and negative temperature coefficient resistors arranged in a resistor array offset one another to provide temperature compensation in the relaxation oscillator circuit.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: November 29, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Alex Jianzhong Chen, Gim Eng Chew, Tong Tee Tan, Kok Chin Pan
  • Methods of making coil transducers
    Patent number: 8061017
    Abstract: Various embodiments of means and methods for reducing the pick-up of electromagnetic interference (“EMI”) by coil transducers are described and shown that are configured to provide high voltage isolation and high voltage breakdown performance characteristics in small packages. In some embodiments, the lengths, heights, and horizontal distances between wires electrically connecting transmitter circuits and receiver circuits to coil transducers are minimized and optimized respecting one another.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: November 22, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Julie E. Fouquet, Richard A Baumgartner, Gary R. Trott
  • BACKLIGHTING FOR OPTICAL FINGER NAVIGATION
    Publication number: 20110267268
    Abstract: An optical finger navigation (OFN) device includes an OFN sensor module, a light source, and a vertical light guide. The OFN sensor module is coupled to a circuit substrate. The OFN sensor module generates a navigation signal in response to a movement detected at a navigation surface based on light reflected from a user's finger. The light source is also coupled to the circuit substrate. The light source generates light (which is separate from the light generated for the OFN sensor module). The vertical light guide is disposed to circumscribe a perimeter of the OFN sensor module. The vertical light guide receives the light from the light source and guides the light toward a light emission surface at a perimeter surface area circumscribing the navigation surface.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Applicant: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.
    Inventors: Chee Foo Lum, Hun Kwang Lee
  • Electronic Assembly
    Publication number: 20110254032
    Abstract: An electronic assembly includes a first substrate and a second substrate, a hole through the first substrate, the second substrate having a trace with an indentation, an electronic device mounted over the indentation in the trace, and the first substrate is attached to the second substrate such that the electronic device is positioned within the hole through the first substrate.
    Type: Application
    Filed: April 20, 2010
    Publication date: October 20, 2011
    Applicant: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Meng Ee Lee, Seong Choon Lim, Eng Chuan Ong
  • Device and method for emitting composite output light using multiple wavelength-conversion mechanisms
    Patent number: 8040039
    Abstract: A device and method for emitting composite output light uses multiple wavelength-conversion mechanisms to convert the original light generated by a light source of the device into longer wavelength light to produce the composite output light. One of the wavelength-conversion mechanisms of the device is a fluorescent substrate of the light source that converts the original light into first converted light. Another wavelength-conversion mechanism of the device is a wavelength-conversion region optically coupled to the light source that converts the original light into second converted light. The original light, the first converted light and the second converted light are emitted from the device as components of the composite output light.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: October 18, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventor: Kee Yean Ng
  • Optocoupler system with reduced power consumption and pulse width distortion
    Patent number: 8035317
    Abstract: According to one embodiment, there is provided an optocoupler system configured to generate current signals having high, low and no amplitude portions in response to the receipt of logic high and low input signals. The varying amplitude portions of the current signals are used to drive other portions of the isolation circuitry, and result in reduced power consumption and dissipation, as well as reduced pulse width distortion.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: October 11, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Kah Weng Lee, Fun Kok Chow
  • Illuminated keypad
    Patent number: 8035048
    Abstract: An illuminated keypad is disclosed herein. And embodiment of the keypad comprises a first zone and a second zone; a substrate comprising a substrate surface; a first switch located on the substrate in the first zone; a first light guide having a first light guide first side and a first light guide second side, wherein the first light guide first side faces the first switch; a second light guide having a second light guide first side and a second light guide second side, wherein the second light guide first side faces the substrate surface; a masking layer having a masking layer first side and a masking layer second side, the masking layer first side facing the substrate surface; and at least one cut in the masking layer, wherein the masking layer blocks a light path between the light guides.
    Type: Grant
    Filed: May 12, 2009
    Date of Patent: October 11, 2011
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Choon Guan Ko, Muh Fong Chung, Sian Tatt Lee, Fook Chuin Ng