Patents by Inventor Gerhard Albert Koepf

Gerhard Albert Koepf 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).

  • Publication number: 20110242451
    Abstract: A beam multiplier operates on lighting assemblies using light emitting diodes (LED) to make their appearance and their illumination field more uniform. It uses holographic structures to multiply the number of light beams emitted by the LEDs. Fixed or switched holographic structures can be used in the construction of beam multipliers. Beam multipliers with electrically switched holographic structures fabricated of liquid crystal materials provide lighting assemblies with selectable static or dynamic modes of operation such as beam widening and sharpening modes, color changing modes and scanning modes.
    Type: Application
    Filed: January 24, 2011
    Publication date: October 6, 2011
    Inventor: Gerhard Albert Koepf
  • Publication number: 20110242630
    Abstract: A beam multiplier operates on lighting assemblies using light emitting diodes (LED) to make their appearance and their illumination field of regard more uniform. It uses holographic gratings to multiply the number of light beams emitted by the LEDs. Fixed or switched holographic gratings can be used in the construction of beam multipliers. Beam multipliers with electrically switched holographic gratings fabricated of liquid crystal materials provide lighting assemblies with selectable static or dynamic modes of operation such as beam widening and sharpening modes, color changing modes and scanning modes.
    Type: Application
    Filed: April 6, 2010
    Publication date: October 6, 2011
    Inventor: Gerhard Albert Koepf
  • Patent number: 7801091
    Abstract: A communication system for communication using wireless signals in a fast macrodiversity switching environment. The wireless signals include downlink signals to and uplink signals from mobile stations where the wireless signals have bursts in time slots. In the communication system, a plurality of transceiver stations have broadcast channels (non-switched) and dedicated channels (switched) for the wireless signals. A zone manager controls the fast macrodiversity switching of bursts in dedicated channels among transceiver stations. The fast macrodiversity switching causes the bursts to have time shifts that are of a magnitude to cause unwanted burst overlap. A macro-diversity timing control controls the timing of bursts, to reduce burst overlap, in dedicated channels that have been dynamically switched timing problem.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: September 21, 2010
    Inventors: Gopal Chillariga, Bhupal Kanaiyalal Dharia, Gerhard Albert Koepf, Lance Kazumi Uyehara
  • Patent number: 7724803
    Abstract: A communication system using fast macrodiversity switching (FMS) and frequency hopping (FH) for wireless signals including downlink signals to and uplink signals from mobile stations. Frequency hopping sequences are determined for the uplink and downlink signals for the mobile stations. A plurality of transceiver stations employ broadcast channels and dedicated channels for communications with the mobile stations. A zone manager controls fast macrodiversity switching of dedicated channels among the mobile stations while broadcast channels remain unswitched. The zone manager extracts frequency hopping information to form predictions of dedicated channel collisions, and based upon the predictions, controls the dynamic switching of dedicated channels to avoid collisions.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: May 25, 2010
    Inventors: Naveen Dhar, Lance Kazumi Uyehara, Ujjal Kumar Ghoshtagore, Gerhard Albert Koepf, Jingqing Xiao
  • Patent number: 7643423
    Abstract: Dynamic allocation of communication channels among communication units (CU) in a communications system. Dynamic channel allocation employs a reservation set for reserving channels and an allocation set corresponding to the reservation set for receiving allocated channels. The reservation set and the allocation set are changed dynamically as a function of network parameters to control the dynamic channel operation. Reservation set information is broadcast downlink to multiple users to reserve an allocation set of uplink radio resources for specific ones of the users. The system uses a modification of the packet data channel (PDCH) of a GPRS/EGPRS or EDGE system which employs an Uplink Status Flag (USF) on each PDCH downlink radio block. The downlink reservation set information is commonly received by all users in the group of users. Allocation delay, bandwidth efficiency and other system parameters are optimized.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: January 5, 2010
    Inventors: Gopal Chillariga, Rohit Kaushal, Bhupal Kanaiyalal Dharia, Lance Kazumi Uyehara, Gerhard Albert Koepf, Kevin Dean Raack, Ujjal Kumar Ghoshtagore
  • Patent number: 7613463
    Abstract: Fast macrodiversity switching (FMS) dynamically switches radio links used for traffic and control channels for a mobile station among a number of base transceiver stations (BTS) without changing the radio resource, that is, using the same frequency and time slot combination (TDMA) or frequency and spreading code combination (CDMA). The traffic channel switching is under control of zone managers. Each BTS includes a zone manager where a host BTS has its zone manager designated as a host zone manager and other BTSs (assistant BTSs) have their zone managers designated as assistant zone managers. The control by the host and assistant zone managers includes switching down-link signals to and up-link signals from mobile stations among base transceiver stations which include broadcast channels (non-switched) and dedicated (switched) channels. Measurements of the wireless signals are made at macrodiverse locations.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: November 3, 2009
    Inventors: Bhupal Kanaiyalal Dharia, Gopal Chillariga, Ujjal Kumar Ghoshtagore, Rohit Kaushal, Gerhard Albert Koepf, Lance Kazumi Uyehara
  • Patent number: 7551595
    Abstract: Fast macrodiversity switching (FMS) of channels that employ interleaving. The fast macrodiversity switching dynamically switches radio links used for traffic and control channels for a mobile station among a number of base transceiver stations (BTS) without switching the radio resource, using the same frequency and time slot combination (TDMA) in an environment where interleaving is occurring. The fast macrodiversity switching of channels and interleave processing is under control of an interleave manager which is distributed among zone managers. The control by the host and assistant zone managers includes switching down-link signals to and up-link signals from mobile stations among base transceiver stations which include broadcast channels (non-switched) and dedicated (switched) channels that employ interleaving. The dedicated channels are switched as frequently as a signal switch time which can be the frame rate of the up-link signals.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: June 23, 2009
    Assignee: Northstar Acquisitions, LLC
    Inventors: Bhupal Kanaiyalal Dharia, Gopal Chillariga, Ujjal Kumar Ghoshtagore, Rohit Kaushal, Gerhard Albert Koepf, Lance Kazumi Uyehara
  • Publication number: 20090029713
    Abstract: Fast macrodiversity switching (FMS) dynamically switches radio links used for traffic and control channels for a mobile station among a number of base transceiver stations (BTS) without changing the radio resource, that is, using the same frequency and time slot combination (TDMA) or frequency and spreading code combination (CDMA). The traffic channel switching is under control of zone managers. Each BTS includes a zone manager where a host BTS has its zone manager designated as a host zone manager and other BTSs (assistant BTSs) have their zone managers designated as assistant zone managers. The control by the host and assistant zone managers includes switching down-link signals to and up-link signals from mobile stations among base transceiver stations which include broadcast channels (non-switched) and dedicated (switched) channels. Measurements of the wireless signals are made at macrodiverse locations.
    Type: Application
    Filed: October 3, 2008
    Publication date: January 29, 2009
    Inventors: Bhupal Kanaiyalal Dharia, Gopal Chillariga, Ujjal Kumar Ghoshtagore, Rohit Kaushal, Gerhard Albert Koepf, Lance Kazumi Uyehara
  • Patent number: 7433683
    Abstract: Fast macrodiversity switching (FMS) dynamically switches radio links used for traffic and control channels for a mobile station among a number of base transceiver stations (BTS) without changing the radio resource, that is, using the same frequency and time slot combination (TDMA) or frequency and spreading code combination (CDMA). The traffic channel switching is under control of zone managers. Each BTS includes a zone manager where a host BTS has its zone manager designated as a host zone manager and other BTSs (assistant BTSs) have their zone managers designated as assistant zone managers. The control by the host and assistant zone managers includes switching down-link signals to and up-link signals from mobile stations among base transceiver stations which include broadcast channels (non-switched) and dedicated (switched) channels. Measurements of the wireless signals are made at macrodiverse locations.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: October 7, 2008
    Assignee: Northstar Acquisitions, LLC
    Inventors: Bhupal Kanaiyalal Dharia, Gopal Chillariga, Ujjal Kumar Ghoshtagore, Rohit Kaushal, Gerhard Albert Koepf, Lance Kazumi Uyehara
  • Patent number: 7177298
    Abstract: Dynamic allocation of communication channels among communication units (CU) in a communications system. Dynamic channel allocation employs a reservation set for reserving channels and an allocation set corresponding to the reservation set for receiving allocated channels. The reservation set and the allocation set are changed dynamically as a function of network parameters to control the dynamic channel operation. Reservation set information is broadcast downlink to multiple users to reserve an allocation set of uplink radio resources for specific ones of the users. The system uses a modification of the packet data channel (PDCH) of a GPRS/EGPRS or EDGE system which employs an Uplink Status Flag (USF) on each PDCH downlink radio block. The downlink reservation set information is commonly received by all users in the group of users. Allocation delay, bandwidth efficiency and other system parameters are optimized.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: February 13, 2007
    Inventors: Gopal Chillariga, Rohit Kaushal, Bhupal Kanaiyalal Dharia, Lance Kazumi Uyehara, Gerhard Albert Koepf, Kevin Dean Raack, Ujjal Kumar Ghoshtagore
  • Patent number: 7020115
    Abstract: A communication system for communication using wireless signals in a fast macrodiversity switching environment. The wireless signals include downlink signals to and uplink signals from mobile stations where the wireless signals have bursts in time slots. In the communication system, a plurality of transceiver stations have broadcast channels (non-switched) and dedicated channels (switched) for the wireless signals. A zone manager controls the fast macrodiversity switching of bursts in dedicated channels among transceiver stations. The fast macrodiversity switching causes the bursts to have time shifts that are of a magnitude to cause unwanted burst overlap. A macrodiversity timing control controls the timing of bursts, to reduce burst overlap, in dedicated channels that have been dynamically switched timing problem.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: March 28, 2006
    Inventors: Gopal Chillariga, Bhupal Kanaiyalal Dharia, Gerhard Albert Koepf, Lance Kazumi Uyehara
  • Patent number: 6987793
    Abstract: A communication system using fast macrodiversity switching (FMS) and frequency hopping (FH) for wireless signals including downlink signals to and uplink signals from mobile stations. Frequency hopping sequences are determined for the uplink and downlink signals for the mobile stations. A plurality of transceiver stations employ broadcast channels and dedicated channels for communications with the mobile stations. A zone manager controls fast macrodiversity switching of dedicated channels among the mobile stations while broadcast channels remain unswitched. The zone manager extracts frequency hopping information to form predictions of dedicated channel collisions, and based upon the predictions, controls the dynamic switching of dedicated channels to avoid collisions.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: January 17, 2006
    Inventors: Naveen Dhar, Lance Kazumi Uyehara, Ujjal Kumar Ghoshtagore, Gerhard Albert Koepf, Jingqing Xiao
  • Publication number: 20020123337
    Abstract: Fast macrodiversity switching (FMS) dynamically switches radio links used for traffic and control channels for a mobile station among a number of base transceiver stations (BTS) without changing the radio resource, that is, using the same frequency and time slot combination (TDMA) or frequency and spreading code combination (CDMA). The traffic channel switching is under control of zone managers. Each BTS includes a zone manager where a host BTS has its zone manager designated as a host zone manager and other BTSs (assistant BTSs) have their zone managers designated as assistant zone managers. The control by the host and assistant zone managers includes switching down-link signals to and up-link signals from mobile stations among base transceiver stations which include broadcast channels (non-switched) and dedicated (switched) channels. Measurements of the wireless signals are made at macrodiverse locations.
    Type: Application
    Filed: December 28, 2000
    Publication date: September 5, 2002
    Inventors: Bhupal Kanaiyalal Dharia, Gopal Chillariga, Ujjal Kumar Ghoshtagore, Rohit Kaushal, Gerhard Albert Koepf, Lance Kazumi Uyehara
  • Publication number: 20020122406
    Abstract: A communication system for communication using wireless signals in a fast macrodiversity switching environment. The wireless signals include downlink signals to and uplink signals from mobile stations where the wireless signals have bursts in time slots. In the communication system, a plurality of transceiver stations have broadcast channels (non-switched) and dedicated channels (switched) for the wireless signals. A zone manager controls the fast macrodiversity switching of bursts in dedicated channels among transceiver stations. The fast macrodiversity switching causes the bursts to have time shifts that are of a magnitude to cause unwanted burst overlap. A macrodiversity timing control controls the timing of bursts, to reduce burst overlap, in dedicated channels that have been dynamically switched timing problem.
    Type: Application
    Filed: June 12, 2001
    Publication date: September 5, 2002
    Inventors: Gopal Chillariga, Bhupal Kanaiyalal Dharia, Gerhard Albert Koepf, Lance Kazumi Uyehara
  • Publication number: 20020085622
    Abstract: A communication system using fast macrodiversity switching (FMS) and frequency hopping (FH) for wireless signals including downlink signals to and uplink signals from mobile stations. Frequency hopping sequences are determined for the uplink and downlink signals for the mobile stations. A plurality of transceiver stations employ broadcast channels and dedicated channels for communications with the mobile stations. A zone manager controls fast macrodiversity switching of dedicated channels among the mobile stations while broadcast channels remain unswitched. The zone manager extracts frequency hopping information to form predictions of dedicated channel collisions, and based upon the predictions, controls the dynamic switching of dedicated channels to avoid collisions.
    Type: Application
    Filed: July 5, 2001
    Publication date: July 4, 2002
    Applicant: mDiversity Inc. a Delaware Corporation
    Inventors: Naveen Dhar, Lance Kazumi Uyehara, Ujjal Kumar Ghoshtagore, Gerhard Albert Koepf, Jingqing Xiao
  • Publication number: 20010030956
    Abstract: Dynamic allocation of communication channels among communication units (CU) in a communications system. Dynamic channel allocation employs a reservation set for reserving channels and an allocation set corresponding to the reservation set for receiving allocated channels. The reservation set and the allocation set are changed dynamically as a function of network parameters to control the dynamic channel operation. Reservation set information is broadcast downlink to multiple users to reserve an allocation set of uplink radio resources for specific ones of the users. The system uses a modification of the packet data channel (PDCH) of a GPRS/EGPRS or EDGE system which employs an Uplink Status Flag (USF) on each PDCH downlink radio block. The downlink reservation set information is commonly received by all users in the group of users. Allocation delay, bandwidth efficiency and other system parameters are optimized.
    Type: Application
    Filed: January 2, 2001
    Publication date: October 18, 2001
    Inventors: Gopal Chillariga, Rohit Kaushal, Bhupal Kanaiyalal Dharia, Lance Kazumi Uyehara, Gerhard Albert Koepf, Kevin Dean Raack, Ujjal Kumar Ghoshtagore