Patents Assigned to Zarlink Semiconductor AB
  • Publication number: 20120296185
    Abstract: A signal acquisition circuit detects a wanted signal in a composite signal containing the wanted signal and an unwanted signal, where the highest frequency in the unwanted signal is higher than the highest frequency in the wanted signal. A sensor captures the composite signal and an analog-to-digital converter samples and converts the composite signal to digital format, and a filter subtracts the unwanted signal from the composite signal. The sampled signal contains a first component containing the sum of the wanted signal and the unwanted signal sampled at a first rate at least equal to the Nyquist rate for the wanted signal but less than a second rate that is at least equal to the Nyquist rate for the unwanted signal, and a second component containing the unwanted signal sampled at the second rate.
    Type: Application
    Filed: May 17, 2011
    Publication date: November 22, 2012
    Applicant: ZARLINK SEMICONDUCTOR AB
    Inventors: Didier Serge Sagan, Reghu Kunnath Rajan
  • Publication number: 20110089438
    Abstract: Provided is a method of providing an opto-electrical assembly. The method comprises attaching a second electrical element to a carrier using a second attachment region at a second attaching temperature. The second attaching temperature is associated with the melting temperature of the second attachment region, such as the melting temperature of solder or the like. The carrier already comprises a first opto-electrical element having been attached to the carrier using a first attachment region at a first attaching temperature, whereby the first attaching temperature is associated with the melting temperature of the first attachment region. The method is provided such that the second attachment region has a lower melting temperature than the first attachment region such that the second attaching temperature is lower than the first attaching temperature.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 21, 2011
    Applicant: ZARLINK SEMICONDUCTOR AB
    Inventors: Odd Robert Steijer, Hans Magnus Emil Andersson, Asa Christina Johansson, Lennart Per Olof Lundqvist, Sylvia Anna-Karin Ek, Maria Elisabeth Källén
  • Publication number: 20110091168
    Abstract: There is provided an opto-electrical assembly. The assembly comprises an optical carrier and one or more optical elements and possibly also electrical elements, such as optical flip-chip die, attached to the optical carrier, and configured for electrical and optical communication with the optical carrier. The assembly further comprises a flexible electrical and optical connectors attached to the optical carrier, and configured to provide electrical and optical communication between the one or more optical and electrical elements and further circuitry. Wherein the flexible connectors are configured to allow for relative movement of the optical carrier and further circuitry during use of the assembly.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 21, 2011
    Applicant: ZARLINK SEMICONDUCTOR AB
    Inventors: Odd Robert Steijer, Hans Magnus Emil Andersson, Maria Elisabeth Kãllén
  • Publication number: 20110062572
    Abstract: Disclosed is a carrier assembly for and a method of manufacturing an optical device. The method comprises providing a silicon substrate; attaching a number of optical dies on the silicon substrate to form an optical device carrier assembly; providing a corresponding number of through holes in the silicon substrate to permit the passage of light therethrough and further providing guide holes in the silicon substrate to present means for passive alignment of an external optical connection; and dicing the optical device carrier assembly to form individual optical devices. Preferably, the step of attaching a number of optical dies comprises using self-alignment of solder bumps using gaseous flux, the through holes are dry etched into the silicon substrate, and/or the volume between the optical die and silicon substrate is filled with a transparent polymer. Preferably, the transparent polymer is silicone rubber or epoxy.
    Type: Application
    Filed: September 14, 2009
    Publication date: March 17, 2011
    Applicant: ZARLINK SEMICONDUCTOR AB
    Inventors: Odd Robert Steijer, Hans Magnus Emil Andersson
  • Publication number: 20110064363
    Abstract: Broadly speaking, disclosed is a carrier assembly for an optical device, the carrier assembly comprising in combination: a glass substrate with an optical die thereon; and a silicon carrier attached to the glass carrier. During manufacture, a number of optical dies can be attached on the glass substrate using self-alignment of AuSn solder bumps using gaseous flux at about 300 deg C. The glass carrier can be mounted to the silicon carrier to form an optical device carrier assembly comprising micromechanical guide holes to facilitate a optical fiber connection, using self-alignment of SnAg solder bumps using gaseous flux at about 250 deg C. Each individual optical device can be tested at a wafer scale. The resulting optical device assembly can be diced to form individual optical devices having a carrier assembly that exhibits the traits of both a silicon carrier and a glass carrier.
    Type: Application
    Filed: September 14, 2009
    Publication date: March 17, 2011
    Applicant: ZARLINK SEMICONDUCTOR AB
    Inventors: Odd Robert Steijer, Hans Magnus Emil Andersson
  • Publication number: 20110028113
    Abstract: A wireless receiver for receiving a signal with a characteristic pattern includes a predictor for predicting the presence of a non-zero value of the characteristic pattern. A tracker tracks a noise component in the received signal between predicted non-zero values. The resulting noise component is subtracted from the received signal to output a processed signal, which is then decoded by a pattern discriminator and demodulator. The wireless receiver is less sensitive to noise and interference.
    Type: Application
    Filed: July 23, 2010
    Publication date: February 3, 2011
    Applicant: ZARLINK SEMICONDUCTOR AB
    Inventors: Magnus Karlsson, Peter Bradley
  • Patent number: 7707329
    Abstract: A remotely programmable device includes a message store for receiving messages over a radiolink from a controller and forwarding the messages to a local application resident in the device, writable registers for controlling operation of the device, a command interpreter for interpreting commands embedded in thessages to write data to the register, and a lock for inhibiting writing of data to the registers. The local application is responsive to an authorization code embedded in the messages to release the lock and thereby allow writing of data to the registers.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: April 27, 2010
    Assignee: Zarlink Semiconductor AB
    Inventor: Per-Olof Bergstedt
  • Patent number: 7657320
    Abstract: Disclosed is an electronic device comprising an inductive element configured to function in a communication mode as an antenna for picking up communication signals, and in a power conversion mode as an inductive element configured to be the energy storage inductor in a switching regulator used for conditioning the power available from an internal power source to power for powering the device, and a controllable switch for switching between said communication mode and said power conversion mode. The communications system further comprises a controllable switch for connecting said inductive element to either said receiver or said power conversion circuit. The controllable switch switches the system between the communication mode and the power conversion mode by means of unipolar or bipolar transistor switches or by mechanical switches or relays. The communication system may be used in an in-vivo medical device.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: February 2, 2010
    Assignee: Zarlink Semiconductor AB
    Inventor: Peter Edward Chadwick
  • Patent number: 7513698
    Abstract: An optic fiber connection arrangement has a module mountable on a printed circuit board, and an optic fiber coupler including mating components. One of the mating components is adapted for coupling into the module. A frame supports one of the components. The frame is releasably latchable to the module so as to couple and decouple the mating component to the module. In this way, the optic fiber coupler can be removed from the module by releasing the frame. The other mating component can be removed from the one mating component after removal of the frame from the module.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: April 7, 2009
    Assignee: Zarlink Semiconductor AB
    Inventor: Hans Magnus Emil Andersson
  • Publication number: 20080199187
    Abstract: Disclosed is an optical floating sub-assembly, comprising a thermally conductive non rigid substance between the heat sink carrier and external casing, to minimize mechanical stress on the optical assembly. Also disclosed is a printed circuit board as an electrical interface, comprising two modules capable of converting an electrical signal to an optical signal, transmitting the optical signal and then converting the optical signal back to an electrical signal. Also disclosed is an optical assembly, comprising a heat sink with mechanical features for optical alignment.
    Type: Application
    Filed: February 13, 2008
    Publication date: August 21, 2008
    Applicant: ZARLINK SEMICONDUCTOR AB
    Inventors: Hans Magnus Emil Andersson, Asa Christina Johansson, John Krister Frode, Lars-Gote Svensson
  • Patent number: 7388446
    Abstract: A variable capacitor modulator for use in a voltage controlled oscillator, includes a differential varactor block, coupling capacitors for connecting nodes of the varactor block to a tank circuit, and an element connected between the respective nodes and ground to trim the gain of the variable capacitor modulator.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: June 17, 2008
    Assignee: Zarlink Semiconductor Ab
    Inventors: Viatcheslav Igorevich Souetinov, Alexander Alekseevich Krasin, Alexander Victorovich Koulakov
  • Publication number: 20080112674
    Abstract: An optic fiber connection arrangement has a module mountable on a printed circuit board, and an optic fiber coupler including mating components One of the mating components is adapted for coupling into the module. A frame supports one of the components. The frame is releasably latchable to the module so as to couple and decouple the mating component to the module. In this way, the optic fiber coupler can be removed from the module by releasing the frame. The other mating component can be removed from the one mating component after removal of the frame from the module.
    Type: Application
    Filed: November 22, 2006
    Publication date: May 15, 2008
    Applicant: Zarlink Semiconductor AB
    Inventor: Hans Magnus Emil Andersson
  • Patent number: 7369818
    Abstract: A functional device is configured to communicate with one or more additional devices over a wireless communications link using wireless circuitry. The device includes a memory for storing information about different wireless characteristics in different geographic locations, a receiver for receiving information about the geographic location of the device, a memory for storing information about different wireless characteristics in different geographic locations, and a control element for retrieving information from the memory based on the geographic location of the device and configuring the wireless circuitry such that its wireless characteristics match the wireless characteristics retrieved from the memory appropriate for the geographic location.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: May 6, 2008
    Assignee: Zarlink Semiconductor AB
    Inventor: Anders K. Westerberg
  • Publication number: 20080039903
    Abstract: Disclosed is an electronic device comprising an inductive element configured to function in a communication mode as an antenna for picking up communication signals, and in a power conversion mode as an inductive element configured to be the energy storage inductor in a switching regulator used for conditioning the power available from an internal power source to power for powering the device, and a controllable switch for switching between said communication mode and said power conversion mode. The communications system further comprises a controllable switch for connecting said inductive element to either said receiver or said power conversion circuit. The controllable switch switches the system between the communication mode and the power conversion mode by means of unipolar or bipolar transistor switches or by mechanical switches or relays. The communication system may be used in an in-vivo medical device.
    Type: Application
    Filed: August 9, 2006
    Publication date: February 14, 2008
    Applicant: Zarlink Semiconductor AB
    Inventor: Peter Edward Chadwick
  • Publication number: 20070206905
    Abstract: Disclosed is a fiber optics module for mounting to the faceplate of a plug-in card. The plug-in card for permitting optical communication with an electronic device comprises a rigid printed circuit board with an edge connector for making electrical connection with said electronic device; a faceplate attached to said printed circuit board for mounting to a bulkhead of the electronic device; a fiber optics module mounted on said faceplate for converting signals between electrical and optical formats, said fiber optics module having an optical connector for connection to a fiber optics cable; and a flexible film extending between said fiber optics module and a flexible film connector mounted on said printed circuit board, said flexible film having conductive tracks for carrying electrical signals between said fiber optics module and said printed circuit board.
    Type: Application
    Filed: March 1, 2006
    Publication date: September 6, 2007
    Applicant: Zarlink Semiconductor AB
    Inventors: Stanley Swirhun, Marco Ghisoni
  • Patent number: 7187242
    Abstract: Charge current in a charge pump of a phase locked loop is equalized by controlling one of the direct current sources with a feedback signal derived from the common mode voltage of a fully differential phase locked loop filter.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: March 6, 2007
    Assignee: Zarlink Semiconductor AB
    Inventor: Magnus Karl-Olof Karlsson
  • Publication number: 20060229053
    Abstract: An electronic implantable device with a power saving circuit incorporates a radio frequency receiver with low power consumption. A high power radio receiver is normally turned off during a period of inactivity. When an analyzer detects a predetermined identification code in a received radio frequency signal, it outputs a signal to turn on the high power receiver.
    Type: Application
    Filed: March 24, 2006
    Publication date: October 12, 2006
    Applicant: Zarlink Semiconductor AB
    Inventor: Ake Sivard
  • Publication number: 20060212536
    Abstract: A remotely programmable device includes a message store for receiving messages over a radiolink from a controller and forwarding the messages to a local application resident in the device, writable registers for controlling operation of the device, a command interpreter for interpreting commands embedded in thessages to write data to the register, and a lock for inhibiting writing of data to the registers. The local application is responsive to an authorization code embedded in the messages to release the lock and thereby allow writing of data to the registers.
    Type: Application
    Filed: March 8, 2006
    Publication date: September 21, 2006
    Applicant: Zarlink Semiconductor AB
    Inventor: Per-Olof Bergstedt
  • Patent number: 6972462
    Abstract: A protection device provides to integrated circuits against high voltages. The diode includes a diode connected to provide a safe discharge path for the high voltage currents. The diode is configured so that in reverse bias breakdown occurs across an area portion of its active junction. The device can dissipate a large amount of ESD energy in a minimal area.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: December 6, 2005
    Assignee: Zarlink Semiconductor AB
    Inventor: Jonathan Harry Orchard-Webb
  • Publication number: 20050231296
    Abstract: A variable capacitor modulator for use in a voltage controlled oscillator, includes a differential varactor block, coupling capacitors for connecting nodes of the varactor block to a tank circuit, and an element connected between the respective nodes and ground to trim the gain of the variable capacitor modulator.
    Type: Application
    Filed: February 10, 2005
    Publication date: October 20, 2005
    Applicant: Zarlink Semiconductor AB
    Inventors: Viatcheslav Souetinov, Alexander Krasin, Alexander Koulakov