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12 records (took 0.025 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE69815706T2

    公开(公告)日：2004-06-03

    申请号：DE69815706

    申请日：1998-10-06

    Applicant: ERICSSON TELEFON AB L M

    Inventor： GAERDENFORS TORBJOERN ,  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.

    2.
    发明专利
    未知

    公开(公告)号：ID25636A

    公开(公告)日：2000-10-19

    申请号：ID20001001

    申请日：1998-10-06

    Applicant: ERICSSON TELEFON AB L M

    Inventor： GARDENFORS TORBJOM ,  BENGTSSON ERIK ,  ENSTROM HAKAN

    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.

    3.
    发明专利
    未知

    公开(公告)号：NO20002277L

    公开(公告)日：2000-06-29

    申请号：NO20002277

    申请日：2000-04-28

    Applicant: ERICSSON TELEFON AB L M

    Inventor： GORDENFORS TORBJOERN ,  BENGTSSON ERIK ,  ENSTROEM HOKAN

    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.

    5.
    发明专利
    未知

    公开(公告)号：NO20002277D0

    公开(公告)日：2000-04-28

    申请号：NO20002277

    申请日：2000-04-28

    Applicant: ERICSSON TELEFON AB L M

    Inventor： GORDENFORS TORBJOERN ,  BENGTSSON ERIK ,  ENSTROEM HOKAN

    IPC: H03B5/32 ,  H03B5/04 ,  H03B5/36 ,  H03L1/02 ,  H03L5/00 ,  H03B

    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.

    6.
    发明专利
    未知

    公开(公告)号：EE04291B1

    公开(公告)日：2004-04-15

    申请号：EEP200000188

    申请日：1998-10-06

    Applicant: ERICSSON TELEFON AB L M

    Inventor： GAERDENFORS TORBJOERN ,  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.

    7.
    发明专利
    未知

    公开(公告)号：EE200000188A

    公开(公告)日：2001-04-16

    申请号：EEP200000188

    申请日：1998-10-06

    Applicant: ERICSSON TELEFON AB L M

    Inventor： GAERDENFORS TORBJOERN ,  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.

    Crystal oscillator with agc and on-chip tuning
    8.
    发明专利
    Crystal oscillator with agc and on-chip tuning 未知

    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.

    9.
    发明专利
    未知

    公开(公告)号：DE69815706D1

    公开(公告)日：2003-07-24

    申请号：DE69815706

    申请日：1998-10-06

    Applicant: ERICSSON TELEFON AB L M

    Inventor： GAERDENFORS TORBJOERN ,  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.

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