公开(公告)号：AU4664799A

公开(公告)日：1999-12-20

申请号：AU4664799

申请日：1999-05-27

Applicant: ERICSSON TELEFON AB L M

Inventor： KHULLAR ANDERS ,  GRAHM TORBJORN ,  GARDENFORS TORBJORN ,  SEDVALLSON SEBASTIAN

IPC: H03G3/30 ,  H03M3/02 ,  H03M7/00

Abstract: In order to increase the resolution of signals input to a power amplifier, this system includes a power control circuit which utilizes sigma delta modulated values which are stored in a memory device. These values, after retrieval from an addressable memory, are supplied only to a low pass filter before being sent to the control input of the power amplifier. The use of sigma delta modulated values can result in a reduction of hardware within the power control circuit of communication devices and increase the signal resolution by moving noise elements from the signal.

公开(公告)号：ES2262232T4

公开(公告)日：2015-09-07

申请号：ES98920797

申请日：1998-04-28

Applicant: ERICSSON TELEFON AB L M

Inventor： RUNDQWIST ANNA-KARIN ,  PETTERSSON MATS ,  GARDENFORS TORBJORN

IPC: H04M1/00 ,  H04M1/72 ,  H04B7/26 ,  H04M1/60 ,  H04M1/725 ,  H04M3/42 ,  H04M11/06 ,  H04Q9/00 ,  H04W8/08

公开(公告)号：ES2285731T3

公开(公告)日：2007-11-16

申请号：ES97908617

申请日：1997-03-04

Applicant: ERICSSON TELEFON AB L M

Inventor： WENDELRUP HEINO ,  SALLENHAG MARTIN ,  GARDENFORS TORBJORN

IPC: H04B7/26 ,  H04M1/72 ,  H04M1/60 ,  H04M1/725 ,  H04W88/02

Abstract: Un conjunto de circuitos de conmutación para un radioteléfono (420) que tiene un micrófono (345), un altavoz (350), un conjunto de circuitos (325, 330) receptor (325) y transmisor (330) para recibir y transmitir señales de comunicación, el radioteléfono (420) está adaptado de modo que sea conectado selectivamente a al menos uno de entre un nodo de entrada (340), para recibir señales generadas por un dispositivo externo de entrada, y un nodo de salida (335) para su conexión a un dispositivo externo de salida, dicho conjunto de circuitos de conmutación está caracterizado por: primeros medios (390A, 370B, 360) adaptados para efectuar selectiva e independientemente una primera conexión entre el nodo de salida (335) y al menos uno de entre dicho micrófono (345) y dicho receptor (325); segundos medios (390B, 365B, 355) adaptados para efectuar selectiva e independientemente una segunda conexión entre el nodo de entrada (340) y al menos uno de entre dicho altavoz (350) y dicho transmisor(330); y en el que los primeros medios y los segundos medios están adaptados de modo que funcionen independientemente entre sí.

公开(公告)号：CA2288161C

公开(公告)日：2005-11-15

申请号：CA2288161

申请日：1998-04-28

Applicant: ERICSSON TELEFON AB L M

Inventor： GARDENFORS TORBJORN ,  RUNDQWIST ANNA-KARIN ,  PETTERSSON MATS

IPC: H04M1/00 ,  H04B7/26 ,  H04M1/60 ,  H04M1/725 ,  H04M3/42 ,  H04M11/06 ,  H04Q9/00 ,  H04W8/08 ,  H04M1/72 ,  H04Q7/32 ,  H04N5/50

Abstract: A system enabling a mobile station (2000) to provide combined mobile telephony and remote control terminal functionalities is disclosed. A mobile station (2000) includes functionalities enabling the mobile station to communicate with a Public Land Mobile Network (2020). Furthermore, command (2025) and communication and local communications (2027) functionalities enable the mobile station (2000) to remotely control a variety of peripheral devices (2040) through user provided inputs.

公开(公告)号：AU740649B2

公开(公告)日：2001-11-08

申请号：AU1447899

申请日：1998-11-10

Applicant: ERICSSON TELEFON AB L M

Inventor： BJORK CHRISTIAN ,  LANTZ MARTIN ,  GARDENFORS TORBJORN ,  MARHOLEV BOJKO

IPC: H03B1/00 ,  H03B5/12

Abstract: A monolithic high frequency voltage controlled oscillator trimming circuit includes a plurality of capacitance loops selectively connected between a first and second differential input of a voltage oscillator active network. A plurality of diodes, connected in series with the respective plurality of capacitance loops, selectively connect respective capacitance loops between the first and second differential input when forward biased. In a similar fashion, the plurality of diodes selectively disconnect the respective capacitance loops from the first and second differential input when reverse biased. A controller applies a forward biasing voltage to the diode of the selected capacitance loop to connect the capacitance loop to the active network of the voltage controlled oscillator and applies a reverse biasing voltage to the diode of the selected capacitance loop to disconnect the capacitance loop from the active network. The diodes used in the capacitance loops form a switch operable at high frequencies and are formed from a bipolar complementary metal oxide semiconductor electro-static discharge protection diode.

公开(公告)号：HK1033869A1

公开(公告)日：2001-09-28

申请号：HK01104338

申请日：2001-06-21

Applicant: ERICSSON TELEFON AB L M

Inventor： BJORK CHRISTIAN ,  LANTZ MARTIN ,  GARDENFORS TORBJORN ,  MARHOLEV BOJKO

IPC: H03B5/12 ,  H03B1/00 ,  H03B

Abstract: A monolithic high frequency voltage controlled oscillator trimming circuit includes a plurality of capacitance loops selectively connected between a first and second differential input of a voltage oscillator active network. A plurality of diodes, connected in series with the respective plurality of capacitance loops, selectively connect respective capacitance loops between the first and second differential input when forward biased. In a similar fashion, the plurality of diodes selectively disconnect the respective capacitance loops from the first and second differential input when reverse biased. A controller applies a forward biasing voltage to the diode of the selected capacitance loop to connect the capacitance loop to the active network of the voltage controlled oscillator and applies a reverse biasing voltage to the diode of the selected capacitance loop to disconnect the capacitance loop from the active network. The diodes used in the capacitance loops form a switch operable at high frequencies and are formed from a bipolar complementary metal oxide semiconductor electro-static discharge protection diode.

公开(公告)号：AU3374901A

公开(公告)日：2001-08-27

申请号：AU3374901

申请日：2001-02-09

Applicant: ERICSSON TELEFON AB L M

Inventor： HOLLSTROM MAGNUS ,  BORGSTROM ANDERS ,  GARDENFORS TORBJORN ,  RYDBECK NILS ,  JOHANSSON ORJAN ,  OLSSON PATRIK ,  TILLGREN MAGNUS ,  DANIELSSON PETER ,  HELLKVIST STEFAN

IPC: B41J2/315 ,  B41J3/36 ,  B41J29/393 ,  G06F3/00 ,  G06F3/01 ,  G06F3/03 ,  G06F3/0354 ,  G06F3/038 ,  G06F9/46 ,  G06F17/30 ,  G06K15/02 ,  H04N1/00 ,  H04N1/047 ,  H04N1/107 ,  H04W76/02 ,  H04W92/08 ,  G06F3/033

Abstract: A method and system for electronic data entry using an electronic reading device that detects at least one position of the electronic reading device relative to a predefined address pattern of a specially formatted surface. Data relating to the at least one detected position is transmitted, preferably via a wireless interface using a radio transceiver. The data is received by a separate electronic device that performs an operation using the received data, wherein the operation corresponds to an area on the address pattern that contains the at least one detected position. The operation, for example, can include initiating a hyperlink function.

公开(公告)号：AU1447899A

公开(公告)日：1999-06-07

申请号：AU1447899

申请日：1998-11-10

Applicant: ERICSSON TELEFON AB L M

Inventor： BJORK CHRISTIAN ,  LANTZ MARTIN ,  GARDENFORS TORBJORN ,  MARHOLEV BOJKO

IPC: H03B1/00 ,  H03B5/12

Abstract: A monolithic high frequency voltage controlled oscillator trimming circuit includes a plurality of capacitance loops selectively connected between a first and second differential input of a voltage oscillator active network. A plurality of diodes, connected in series with the respective plurality of capacitance loops, selectively connect respective capacitance loops between the first and second differential input when forward biased. In a similar fashion, the plurality of diodes selectively disconnect the respective capacitance loops from the first and second differential input when reverse biased. A controller applies a forward biasing voltage to the diode of the selected capacitance loop to connect the capacitance loop to the active network of the voltage controlled oscillator and applies a reverse biasing voltage to the diode of the selected capacitance loop to disconnect the capacitance loop from the active network. The diodes used in the capacitance loops form a switch operable at high frequencies and are formed from a bipolar complementary metal oxide semiconductor electro-static discharge protection diode.

公开(公告)号：AU9655798A

公开(公告)日：1999-05-24

申请号：AU9655798

申请日：1998-10-06

Applicant: ERICSSON TELEFON AB L M

Inventor： GARDENFORS TORBJORN ,  BENGTSSON ERIK ,  ENSTROEM HAAKAN

IPC: H03B5/32 ,  H03B5/04 ,  H03B5/36 ,  H03L1/02 ,  H03L5/00

Abstract: A highly stable single chip crystal controlled oscillator with automatic gain control. An amplitude detector monitors the output of a crystal controlled oscillator amplifier and produces a feedback signal proportional to the output signal of the amplifier to ensure oscillation is induced at startup and that the amplitude of oscillation is limited to a preselected value during operation to conserve power consumption by the amplifier. The capacitor tank circuit connected to the input of the amplifier includes a voltage variable capacitor the voltage across which is initially established at manufacture to tune the oscillation frequency to a preselected value. The voltage across the voltage variable capacitor is also adjusted to compensate for temperature variations in the circuit.

公开(公告)号：MY120742A

公开(公告)日：2005-11-30

申请号：MYPI9802022

申请日：1998-05-06

Applicant: ERICSSON TELEFON AB L M

Inventor： MARHOLEV BOJKO ,  GARDENFORS TORBJORN ,  BJORK CHRISTIAN

IPC: G06F1/24 ,  G06F11/14 ,  H03L7/00 ,  H03K17/22

Abstract: A POWER-ON RESET CIRCUIT WITH GLITCH SENSING CAPABILITIES IS FORMED AS PART OF THE SAME INTEGRATED CIRCUIT CHIP CONTAINING OTHER LOGICAL CIRCUITS. A PORT INCLUDED IN THE INTEGRATED CIRCUIT CHIP ENABLES A POWER-ON RESET SIGNAL GENERATED BY THE INTEGRATED POWER-ON RESET CIRCUIT TO BE OUTPUT FROM THE CHIP AND APPLIED TO OTHER CHIPS INSTALLED IN A SINGLE CHIP OR MULTI-CHIP ELECTRONIC SYSYEM. THE POWER-ON RESET CIRCUIT COMPARES A CAPACITOR STORED RESET VOLTAGE TO A REFERENCE VOLTAGE AND OUTPUTS THE POWER-ON RESET SIGNAL WHEN THE RESET VOLTAGE FALLS BELOW THE REFERENCE VOLTAGE. STORAGE OF THE RESETVOLTAGE BY THE CAPACITOR IS CONTROLLED BY A GLITCH SENSOR WHICH DETECTS CHANGES IN VOLTAGE PROVIDED BY A POWER SUPPLY IN EXCESS OF A GIVEN THRESHOLD AND, IN RESPONSE THERETO, TRIGGERS A CAPACITOR DISCHARGE. THIS CAUSES THE RESET VOLTAGE TO FALL BELOW THE REFERENCE VOLTAGE, AND THE POWER-ON RESET SIGNAL TO BE OUTPUT. FURTHERMORE, FOR SYNCHRONOUSLY OPERATED SYSTEMS, THE OUTPUT POWER-ON RESET SIGNAL IS SYNCHRONIZED WITH AN EDGE OF AN OUTPUT CLOCK SIGNAL.