Patents by Inventor Dale L. Hemmie

Dale L. Hemmie 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).

  • Patent number: 5523768
    Abstract: An integrated semi-parabolic antenna/down converter MMDS receiving system wherein the support boom of a semi-parabolic antenna contains the down converter electronics. Located at the focal area of the semi-parabolic antenna are a pair of driven feed elements which are directly connected to the printed circuit board carrying the down converter electronics. The down converter is formed in an elongated shape to fit entirely within the formed hollow interior of the support boom. The down converter comprises a first printed circuit board which contains an RF filter located at the input end of the printed circuit board. The input of the RF filter circuit is directly connected to the pair of driven feed elements by soldering the legs of the driven feed elements directly to the input of the RF filter stage on the first printed circuit board. The RF filter is surrounded by an input ground shield which covers the RF filter circuit. The shield is soldered to the top and bottom ground planes of the printed circuit board.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: June 4, 1996
    Assignee: Conifer Corporation
    Inventors: Dale L. Hemmie, Douglas Mills
  • Patent number: 5448255
    Abstract: A dual band MDS/MMDS down converter receiving system wherein the support boom of a semi-parabolic antenna contains the down converter electronics. Located at the focal area of the semi-parabolic antenna are a pair of driven feed elements which are connected to the printed circuit board carrying the dual band down converter electronics. The dual band down converter is formed in an elongated shape to fit entirely within the formed hollow interior of the support boom. The down converter comprises a first printed circuit board which contains a low noise amplifier, two RF filters, and two diplexer filters located at the input end of the printed circuit board. The RF filters are mounted on opposite sides of the printed circuit board. The input is directly connected to the pair of driven feed elements. The RF filters are surrounded by input ground shields.
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: September 5, 1995
    Assignee: Conifer Corporation
    Inventors: Paul W. Hulett, Dale L. Hemmie, Marc D. Mills
  • Patent number: 5437052
    Abstract: An integrated bi-directional MMDS/MDS converter connected to an antenna for receiving MMDS programming for receiving information/data signals from a set top for retransmission of these signals back to central location. The integrated bi-directional converter has a down converter connected to the diplexer for down converting conventional programming signals into a group of converted programming signals in the 222 to 408 MHz range, an up converter for up converting data/information signals in the 116 to 128 MHz range from the communication line into MDS signals and delivers it into the diplexer. The diplexer applies the outgoing MDS data signals to the feed of the antenna for transmission. The integrated bi-directional MMDS/MDS converter of the present invention uses a common local oscillator for driving both the down converter and the up converter.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: July 25, 1995
    Assignee: Conifer Corporation
    Inventors: Dale L. Hemmie, Charles L. Brown
  • Patent number: 5402138
    Abstract: A dual band MDS/MMDS down converter receiving system wherein the support boom of a semi-parabolic antenna contains the down converter electronics. Located at the focal area of the semi-parabolic antenna are a pair of driven feed elements which are connected to the printed circuit board carrying the dual band down converter electronics. The dual band down converter is formed in an elongated shape to fit entirely within the formed hollow interior of the support boom. The down converter comprises a first printed circuit board which contains a low noise amplifier, two RF filters, and two diplexer filters located at the input end of the printed circuit board. The RF filters are mounted on opposite sides of the printed circuit board. The input is directly connected to the pair of driven feed elements. The RF filters are surrounded by input ground shields.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: March 28, 1995
    Assignee: Conifer Corporation
    Inventors: Paul W. Hulett, Dale L. Hemmie, Marc D. Mills
  • Patent number: 5394559
    Abstract: A bi-directional MMDS/ITFS response converter and feed system connected to an antenna for receiving MMDS programming from a central location and for receiving information/data signals from a set top for retransmission of these signals back to the central location, The bi-directional converter has a down converter connected to a first feed for down converting conventional programming signals from the first feed into a group of converted programming signals and an up converter for up converting data/information signals from the communication line into ITFS response signals and delivering them into a second feed for transmission, The bi-directional MMDS/ITFS response converter of the present invention uses a common local oscillator for driving both the down converter and the up converter and a dual feed printed circuit board having the first feed dipole printed orthogonally to the second feed dipole,
    Type: Grant
    Filed: June 15, 1993
    Date of Patent: February 28, 1995
    Assignee: Conifer Corporation
    Inventors: Dale L. Hemmie, Charles L. Brown
  • Patent number: 5313220
    Abstract: An integrated semi-parabolic antenna/down converter receiving system wherein the support boom of a semi-parabolic antenna contains the down converter electronics. Located at the focal area of the semi-parabolic antenna are a pair of driven feed elements which are electrically connected to the printed circuit board carrying the down converter electronics. The down converter is formed in an elongated shape to fit entirely within the formed hollow interior of the support boom. The down converter comprises a first printed circuit board which contains a low noise amplifier connected to an RF filter located at the input end of the printed circuit board. The RF filter is surrounded by an input ground shield which covers the RF filter circuit. The shield is soldered to the top and bottom ground planes of the printed circuit board. At the opposite end of the printed circuit board are two output I.F. amplifiers whose outputs are serially connected together.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: May 17, 1994
    Assignee: Conifer Corporation
    Inventors: Dale L. Hemmie, Marc D. Mills
  • Patent number: 5300941
    Abstract: An integrated semi-parabolic antenna/down converter MMDS receiving system wherein the support boom of a semi-parabolic antenna contains the down converter electronics. Located at the focal area of the semi-parabolic antenna are a pair of driven feed elements which are directly connected to the printed circuit board carrying the down converter electronics. The down converter is formed in an elongated shape to fit entirely within the formed hollow interior of the support boom. The down converter comprises a first printed circuit board which contains an RF filter located at the input end of the printed circuit board. The input of the RF filter circuit is directly connected to the pair of driven feed elements by soldering the legs of the driven feed elements directly to the input of the RF filter stage on the first printed circuit board. The RF filter is surrounded by an input ground shield which covers the RF filter circuit. The shield is soldered to the top and bottom ground planes of the printed circuit board.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: April 5, 1994
    Assignee: Conifer Corporation
    Inventors: Dale L. Hemmie, Marc D. Mills
  • Patent number: 5293175
    Abstract: A multichannel, multipoint distribution services (MMDS) dipole antenna for receiving multiple channels in the S-band frequency range of 2000 and 3000 MHz is formed from a printed circuit board which is directly connected to a coaxial cable. On the printed circuit board are etched two stacked dipoles. Each of the dipoles has a first one-half element etched on the first side of the printed circuit board and the second one-half element etched on the second side of the printed circuit board. The first and second dipoles are oriented to be in phase with each other and are separated from each other at a wavelength spacing between 0.25 lambda and 0.40 lambda. The antenna of the present invention further uses a phase combining circuit and an impedance matching circuit etched on the printed circuit board for combining in phase the polarized signals, for canceling the non-polarized signals at 0.degree. and 180.degree.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: March 8, 1994
    Assignee: Conifer Corporation
    Inventors: Dale L. Hemmie, Robert M. Evans
  • Patent number: 5229782
    Abstract: A multichannel, multipoint distribution services (MMDS) dipole antenna for receiving multiple channels in the S-band frequency range of 2000 and 3000 MHz is formed from a printed circuit board which is directly connected to a coaxial cable. On the printed circuit board are etched two stacked dipoles. Each of the dipoles has a first one-half element etched on the first side of the printed circuit board and the second one-half element etched on the second side of the printed circuit board. The first and second dipoles are oriented to be in phase with each other and are separated from each other at a wavelength spacing between 0.25 lambda and 0.40 lambda. The antenna of the present invention further uses a phase combining circuit and an impedance matching circuit etched on the printed circuit board for combining in phase the polarized signals, for canceling the non-polarized signals at 0.degree. and 180.degree.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: July 20, 1993
    Assignee: Conifer Corporation
    Inventors: Dale L. Hemmie, Robert M. Evans
  • Patent number: 5202699
    Abstract: An integrated semi-parabolic antenna/down converter MMDS receiving system wherein the support boom of a semi-parabolic antenna contains the down converter electronics. Located at the focal area of the semi-parabolic antenna are a pair of driven feed elements which are directly connected to the printed circuit board carrying the down converter electronics. The down converter is formed in an elongated shape to fit entirely within the formed hollow interior of the support boom. The down converter comprises a first printed circuit board which contains an RF filter located at the input end of the printed circuit board. The input of the RF filter circuit is directly connected to the pair of driven feed elements by soldering the legs of the driven feed elements directly to the input of the RF filter stage on the first printed circuit board. The RF filter is surrounded by an input ground shield which covers the RF filter circuit. The shield is soldered to the top and bottom ground planes of the printed circuit board.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: April 13, 1993
    Assignee: Confier Corporation
    Inventors: Dale L. Hemmie, Marc D. Mills
  • Patent number: 5191350
    Abstract: A parabolic low wind load antenna for receiving incoming MMDS signals wherein the antenna is essentially constructed of two identically formed, one-piece reflective halves connected together to form a rectangular shaped parabolic antenna. Each of the reflector halves comprises a substantially U-shaped rigid frame being parabolically shaped in the length dimension and being parabolically shaped in the width dimension. A plurality of reflector elements of circular cross-section and of equal length are oriented in parallel relationship to each other and are spaced apart from each other at a predetermined spacing of about ten percent of the MMDS wavelength. The predetermined spacing is determined in a plane perpendicular to the path of the incoming signals and each of the reflected elements is connected at its terminal ends to the sides of the U-shaped frame. Each of the reflector elements is formed in a full parabolic shape in the width dimension.
    Type: Grant
    Filed: July 19, 1991
    Date of Patent: March 2, 1993
    Assignee: Conifer Corporation
    Inventor: Dale L. Hemmie
  • Patent number: 5020149
    Abstract: An integrated down converter and interdigital filter apparatus having a down converter and a number of interdigital filters mounted on the same printed circuit board and installed in the watertight housing. The housing of each interdigital filter is cut from sheet metal, with a conductive surface on the printed circuit board as one side. A method for construction of the interdigital filter is also set forth.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: May 28, 1991
    Assignee: Conifer Corporation
    Inventor: Dale L. Hemmie
  • Patent number: 5008956
    Abstract: An integrated local oscillator interdigital filter apparatus in a down converter is mounted on the same printed circuit board. The housing of the interdigital filter is cut from sheet metal, with a conductive surface on the printed circuit board as one side. A method for construction of the interdigital filter is also set forth.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: April 16, 1991
    Assignee: Conifer Corporation
    Inventor: Dale L. Hemmie
  • Patent number: 4791717
    Abstract: An integrated down converter and interdigital filter apparatus having a down converter and the interdigital filter mounted on the same printed circuit board and installed in the watertight housing. The housing of the interdigital filter is cut from sheet metal and a conductive surface on the printed circuit board as one side. A method for construction of the interdigital filter is also set forth.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: December 20, 1988
    Assignee: Conifer Corporation
    Inventor: Dale L. Hemmie
  • Patent number: 4367485
    Abstract: A two-way microwave television system for linking a master or teaching station with a plurality of sub-station schools via a single microwave link is presented. The sub-station schools are located at dispersed school sites and function as relay stations to complete a network covering a geographical area of greater dimensions than could be achieved by the master station unassisted. A single duplex microwave channel is used to transmit a picture originating at the master station and special effects generators located at each of the sub-station school relay sites combine, through a special video switching network, responses from each sub-station school to form an integrated frame containing the response from each sub-station in a format which can be transmitted on a single channel carrier.
    Type: Grant
    Filed: March 10, 1981
    Date of Patent: January 4, 1983
    Assignee: Telecom Engineering, Inc.
    Inventor: Dale L. Hemmie