公开(公告)号：AU2003290052A1

公开(公告)日：2004-07-09

申请号：AU2003290052

申请日：2003-12-15

Applicant: ERICSSON TELEFON AB L M

Inventor： BRISTOW ROBERT

IPC: H03C3/40 ,  H04L27/00 ,  H04L27/36

公开(公告)号：SE516509C2

公开(公告)日：2002-01-22

申请号：SE0001821

申请日：2000-05-18

Applicant: ERICSSON TELEFON AB L M

Inventor： MATTISSON SVEN ,  HAARTSEN JACOBUS ,  BRISTOW ROBERT

IPC: H04B1/38 ,  H04B1/40 ,  H04B7/185 ,  H04L12/56 ,  H04W84/06 ,  H04W84/18 ,  H04W88/06 ,  H04Q7/32

Abstract: A dual-radio communication apparatus has a first radio device, such as a Bluetooth radio, for use in a first frequency band, and a second radio device, such as a Globalstar satellite radio, for use in a second frequency band, which is proximate to the first frequency band. The communication apparatus also has a controller coupled to the first and second radio devices. The first radio device may comprise a frequency-hopping spread-spectrum transmitter. Moreover, the first radio device has a first operating mode employing a first frequency range. The first radio device also has a second operating mode employing a second frequency range, which is smaller than the first frequency range. The controller is adapted to set the first radio device in its second operating mode, when the second radio device is in operation, and otherwise set the first radio device in its first operating mode.

公开(公告)号：AT357081T

公开(公告)日：2007-04-15

申请号：AT04250308

申请日：2004-01-21

Applicant: ERICSSON TELEFON AB L M

Inventor： BRISTOW ROBERT ,  JONSSON LARS ,  MATTSSON THOMAS

IPC: H03L7/099 ,  H03L7/14 ,  H03L7/18 ,  H04B1/50

Abstract: A reference frequency generator circuit for a radio frequency transmit and receive apparatus comprises: a first voltage controlled oscillator which is operable to produce a first reference frequency signal, a second voltage controlled oscillator which is operable to produce a second reference frequency signal, a switchable set of dividers, connected to receive the first and second reference frequency signals, and operable to produce a set of output reference frequency signals therefrom, a first subset of the set of output reference frequencies being derived from the first reference frequency, and a second subset of the set of output reference frequencies being derived from the second reference frequency, wherein the first and second reference frequency signals are not equal in frequency to the output reference frequency signals in the set of output reference frequency signals.

公开(公告)号：DE602004005298T2

公开(公告)日：2007-07-12

申请号：DE602004005298

申请日：2004-01-21

Applicant: ERICSSON TELEFON AB L M

Inventor： BRISTOW ROBERT ,  JONSSON LARS ,  MATTSSON THOMAS

IPC: H03L7/099 ,  H03L7/14 ,  H03L7/18 ,  H04B1/50

Abstract: A reference frequency generator circuit for a radio frequency transmit and receive apparatus comprises: a first voltage controlled oscillator which is operable to produce a first reference frequency signal, a second voltage controlled oscillator which is operable to produce a second reference frequency signal, a switchable set of dividers, connected to receive the first and second reference frequency signals, and operable to produce a set of output reference frequency signals therefrom, a first subset of the set of output reference frequencies being derived from the first reference frequency, and a second subset of the set of output reference frequencies being derived from the second reference frequency, wherein the first and second reference frequency signals are not equal in frequency to the output reference frequency signals in the set of output reference frequency signals.

公开(公告)号：DE602004005298D1

公开(公告)日：2007-04-26

申请号：DE602004005298

申请日：2004-01-21

Applicant: ERICSSON TELEFON AB L M

Inventor： BRISTOW ROBERT ,  JONSSON LARS ,  MATTSSON THOMAS

IPC: H03L7/099 ,  H03L7/14 ,  H03L7/18 ,  H04B1/50

Abstract: A reference frequency generator circuit for a radio frequency transmit and receive apparatus comprises: a first voltage controlled oscillator which is operable to produce a first reference frequency signal, a second voltage controlled oscillator which is operable to produce a second reference frequency signal, a switchable set of dividers, connected to receive the first and second reference frequency signals, and operable to produce a set of output reference frequency signals therefrom, a first subset of the set of output reference frequencies being derived from the first reference frequency, and a second subset of the set of output reference frequencies being derived from the second reference frequency, wherein the first and second reference frequency signals are not equal in frequency to the output reference frequency signals in the set of output reference frequency signals.

公开(公告)号：AU5689101A

公开(公告)日：2001-11-26

申请号：AU5689101

申请日：2001-04-26

Applicant: ERICSSON TELEFON AB L M

Inventor： MATTISSON SVEN ,  BRISTOW ROBERT ,  HAARTSEN JACOBUS

IPC: H04B1/38 ,  H04B1/40 ,  H04B7/185 ,  H04L12/56 ,  H04W84/06 ,  H04W84/18 ,  H04W88/06 ,  H04Q7/32

Abstract: A dual-radio communication apparatus has a first radio device, such as a Bluetooth radio, for use in a first frequency band, and a second radio device, such as a Globalstar satellite radio, for use in a second frequency band, which is proximate to the first frequency band. The communication apparatus also has a controller coupled to the first and second radio devices. The first radio device may comprise a frequency-hopping spread-spectrum transmitter. Moreover, the first radio device has a first operating mode employing a first frequency range. The first radio device also has a second operating mode employing a second frequency range, which is smaller than the first frequency range. The controller is adapted to set the first radio device in its second operating mode, when the second radio device is in operation, and otherwise set the first radio device in its first operating mode.

公开(公告)号：SE0001821D0

公开(公告)日：2000-05-18

申请号：SE0001821

申请日：2000-05-18

Applicant: ERICSSON TELEFON AB L M

Inventor： MATTISSON SVEN ,  HAARTSEN JACOBUS ,  BRISTOW ROBERT

IPC: H04B1/38 ,  H04B1/40 ,  H04B7/185 ,  H04L12/56 ,  H04W84/06 ,  H04W84/18 ,  H04W88/06 ,  H04B

Abstract: A dual-radio communication apparatus has a first radio device, such as a Bluetooth radio, for use in a first frequency band, and a second radio device, such as a Globalstar satellite radio, for use in a second frequency band, which is proximate to the first frequency band. The communication apparatus also has a controller coupled to the first and second radio devices. The first radio device may comprise a frequency-hopping spread-spectrum transmitter. Moreover, the first radio device has a first operating mode employing a first frequency range. The first radio device also has a second operating mode employing a second frequency range, which is smaller than the first frequency range. The controller is adapted to set the first radio device in its second operating mode, when the second radio device is in operation, and otherwise set the first radio device in its first operating mode.