Patents by Inventor Daehee Lee

Daehee Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Multiple power mode amplifier with bias modulation option and without bypass switches
    Patent number: 7388427
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in radio frequency (RF) applications such as mobile telephones, pagers, portable digital assistants, and wireless e-mail devices. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120). An implementation provides further power consumption savings by modulating a bias of an amplifier stage.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: June 17, 2008
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon, Moon-Seok Jeon
  • Multiple power mode amplifier with bias modulation option and without bypass switches
    Patent number: 7348841
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in radio frequency (RF) applications such as mobile telephones, pagers, portable digital assistants, and wireless e-mail devices. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120). An implementation provides further power consumption savings by modulating a bias of an amplifier stage.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: March 25, 2008
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon, Moon-Seok Jeon
  • MULTIPLE POWER MODE AMPLIFIER WITH BIAS MODULATION OPTION AND WITHOUT BYPASS SWITCHES
    Publication number: 20080012635
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in radio frequency (RF) applications such as mobile telephones, pagers, portable digital assistants, and wireless e-mail devices. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120). An implementation provides further power consumption savings by modulating a bias of an amplifier stage.
    Type: Application
    Filed: September 19, 2007
    Publication date: January 17, 2008
    Applicant: Wavies, Inc.
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon, Moon-Seok Jeon
  • MULTIPLE POWER MODE AMPLIFIER WITH BIAS MODULATION OPTION AND WITHOUT BYPASS SWITCHES
    Publication number: 20080007329
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in radio frequency (RF) applications such as mobile telephones, pagers, portable digital assistants, and wireless e-mail devices. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120). An implementation provides further power consumption savings by modulating a bias of an amplifier stage.
    Type: Application
    Filed: September 19, 2007
    Publication date: January 10, 2008
    Applicant: Wavics Inc., Delaware corporation
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon, Moon-Seok Jeon
  • MULTIPLE POWER MODE AMPLIFIER WITH BIAS MODULATION OPTION AND WITHOUT BYPASS SWITCHES
    Publication number: 20080007328
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in radio frequency (RF) applications such as mobile telephones, pagers, portable digital assistants, and wireless e-mail devices. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120). An implementation provides further power consumption savings by modulating a bias of an amplifier stage.
    Type: Application
    Filed: September 19, 2007
    Publication date: January 10, 2008
    Applicant: Wavics, Inc.
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon, Moon-Seok Jeon
  • MULTIPLE POWER MODE AMPLIFIER WITH BIAS MODULATION OPTION AND WITHOUT BYPASS SWITCHES
    Publication number: 20080007327
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in radio frequency (RF) applications such as mobile telephones, pagers, portable digital assistants, and wireless e-mail devices. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120). An implementation provides further power consumption savings by modulating a bias of an amplifier stage.
    Type: Application
    Filed: September 19, 2007
    Publication date: January 10, 2008
    Applicant: Wavics Inc., Delaware corporation
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon, Moon-Seok Jeon
  • Multiple power mode amplifier with bias modulation option and without bypass switches
    Patent number: 7315205
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in radio frequency (RF) applications such as mobile telephones, pagers, portable digital assistants, and wireless e-mail devices. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120). An implementation provides further power consumption savings by modulating a bias of an amplifier stage.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: January 1, 2008
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon, Moon-Seok Jeon
  • High efficiency power amplifier
    Patent number: 7215192
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in RF applications such as mobile telephones. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units, impedance transformer, and a power stage.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: May 8, 2007
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon
  • Multiple power mode amplifier with bias modulation option and without bypass switches
    Publication number: 20070096805
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in radio frequency (RF) applications such as mobile telephones, pagers, portable digital assistants, and wireless e-mail devices. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120). An implementation provides further power consumption savings by modulating a bias of an amplifier stage.
    Type: Application
    Filed: November 6, 2006
    Publication date: May 3, 2007
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon, Moon-Seok Jeon
  • Multiple power mode amplifier with bias modulation option and without bypass switches
    Patent number: 7161422
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in radio frequency (RF) applications such as mobile telephones, pagers, portable digital assistants, and wireless e-mail devices. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120). An implementation provides further power consumption savings by modulating a bias of an amplifier stage.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: January 9, 2007
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon, Moon-Seok Jeon
  • HIGH EFFICIENCY POWER AMPLIFIER
    Publication number: 20060261887
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in RF applications such as mobile telephones. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units, impedance transformer, and a power stage.
    Type: Application
    Filed: March 31, 2006
    Publication date: November 23, 2006
    Applicant: Avago Technologies
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon
  • High efficiency power amplifier with multiple power modes
    Patent number: 7049886
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in RF applications such as mobile telephones. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120).
    Type: Grant
    Filed: January 14, 2005
    Date of Patent: May 23, 2006
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon
  • High efficiency power amplifier
    Patent number: 7023270
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in RF applications such as mobile telephones. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units, impedance transformer, and a power stage.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: April 4, 2006
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon
  • High efficiency power amplifier with multiple power modes
    Patent number: 6972618
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in RF applications such as mobile telephones. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120).
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: December 6, 2005
    Assignee: Wavics, Inc.
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon
  • High efficiency power amplifier with multiple power modes
    Publication number: 20050122165
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in RF applications such as mobile telephones. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120).
    Type: Application
    Filed: January 14, 2005
    Publication date: June 9, 2005
    Applicant: Wavics Inc.
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon
  • High efficiency power amplifier with multiple power modes
    Patent number: 6900692
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in RF applications such as mobile telephones. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120).
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: May 31, 2005
    Assignee: Wavics, Inc.
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon
  • High Efficiency Power Amplifier
    Publication number: 20050099227
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in RF applications such as mobile telephones. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units, impedance transformer, and a power stage.
    Type: Application
    Filed: January 20, 2005
    Publication date: May 12, 2005
    Applicant: WAVICS INC.
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon
  • Multiple power mode amplifier with bias modulation option and without bypass switches
    Publication number: 20050083117
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in radio frequency (RF) applications such as mobile telephones, pagers, portable digital assistants, and wireless e-mail devices. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120). An implementation provides further power consumption savings by modulating a bias of an amplifier stage.
    Type: Application
    Filed: December 30, 2003
    Publication date: April 21, 2005
    Applicant: Wavics, Inc.
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon, Moon-Seok Jeon
  • High efficiency power amplification apparatus with multiple power modes
    Publication number: 20050068101
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in RF applications such as mobile telephones. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120).
    Type: Application
    Filed: November 18, 2004
    Publication date: March 31, 2005
    Applicant: Wavics, Inc.
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon
  • High efficiency power amplifier with multiple power modes
    Publication number: 20040130391
    Abstract: A multiple power mode amplifier provides a low and a high power mode without using switches. This amplifier may be used in RF applications such as mobile telephones. In the low power mode, the power consumption of the amplifier is reduced, which will increase operation time, especially important for battery-operated devices. In one implementation, the amplifier includes a number of impedance matching network units (130, 140, 150, and 160), impedance transformer (170), and a power stage (120).
    Type: Application
    Filed: May 9, 2003
    Publication date: July 8, 2004
    Applicant: Wavics, Inc.
    Inventors: Junghyun Kim, Daehee Lee, Sanghwa Jung, Youngwoo Kwon