Patents by Inventor Stanley L. Reinhold

Stanley L. Reinhold 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: 6035178
    Abstract: A communication system provides efficient satellite communication in rural, remote, or sparsely populated areas, or in areas lacking a conventional telephone infrastructure, or in special purpose uses such as airport coverage. Subscribers in such areas communicate with the satellite via a simple, highly modular entry node located in a local area to be served. Subscriber units provide subscribers with access to the system. The subscriber units are connected to the entry node via local access loops provided by point-to-point wireless links between the subscriber units and the entry node. The entry node internally switches local traffic among subscribers and connects traffic to outside circuits, via wireless links with the satellite, as appropriate. The outside circuits are provided by the cooperative working of the satellite, an entry-node controller, and an earth station. The wireless links between the satellite and the entry node and the local access loops may operate at the same or different frequencies.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: March 7, 2000
    Assignee: Ericsson Inc.
    Inventors: Sandeep Chennakeshu, Nils Rydbeck, Amer Hassan, Stanley L. Reinhold, David R. Irvin
  • Patent number: 5946625
    Abstract: A fractional loading scheme is used to improve the spectral efficiency of a cellular system, and therefore increase the number of users that the system can support. The fractional loading scheme allows only a fraction of the total number of available communication channels within each cell to be used simultaneously. Thus, each cell is deliberately underloaded to operate at less than its full capacity. The underloading of the individual cells reduces the spectral efficiency within each cell. However, the underloading of each cell means that there will be fewer interfering users at any given time so that the co-channel interference is reduced. This reduction in co-channel interference allows the reuse distance between co-channel cells to be reduced thereby increasing the reuse of frequencies throughout the system resulting in an increase in spectral efficiency in the system as a whole.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: August 31, 1999
    Assignee: Ericsson, Inc.
    Inventors: Amer Hassan, Stanley L. Reinhold, Rajaram Ramesh
  • Patent number: 5943324
    Abstract: Methods and apparatus for mobile station to mobile station communications in a mobile satellite communications system include an asymmetrical TDMA formatting scheme. According to exemplary embodiments, a first mobile station broadcasts a first signal to an orbiting satellite using a first TDMA format. The satellite receives the first signal, maps the first TDMA format to a second TDMA format and broadcasts a second signal having the second TDMA format to a second mobile station. Advantageously, exemplary embodiments utilize an elastic buffer to allow the satellite to map the uplink TDMA format to the downlink TDMA format without having to demodulate and re-modulate communications signals.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: August 24, 1999
    Assignee: Ericsson, Inc.
    Inventors: Rajaram Ramesh, Paul W. Dent, Stanley L. Reinhold
  • Patent number: 5914942
    Abstract: A satellite-cellular communication system includes a satellite based transceiver for transceiving two-way communications originated at a user terminal. As a part of call set up, a controller determines whether the user terminal should transmit in the uplink in either a wide band mode of operation or in a narrow band mode of operation. The controller then specifies to the user terminal the mode of operation through the transceiver.Whether the user terminal transmits in the uplink in a wide band or in a narrow band mode depends upon factors including the type of device, channel usage and efficiency in the channels to and from the satellite transceiver and the signal quality of the signals received at the transceiver.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: June 22, 1999
    Assignee: Ericsson Inc.
    Inventors: Amer A. Hassan, Stanley L. Reinhold, Nils Rutger Rydbeck
  • Patent number: 5907306
    Abstract: A multi-piece retractable radiotelephone antenna and associated communication method is employed to provide improved signal quality. The multi-piece antenna includes conductive windings, such as helical quadrafillar windings, disposed separately on two slidably cooperating substrate members. The antenna is mechanically extended to a deploy position and the separate windings are electrically connected thereby doubling the effective electrical length of the antenna.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: May 25, 1999
    Assignee: Ericsson Inc.
    Inventors: Peter D. Karabinis, Yawei Ma, Stanley L. Reinhold
  • Patent number: 5883929
    Abstract: A synchronization method and apparatus for synchronizing a receiver, such as a radiotelephone operable in a cellular communication system with a transmitter. Synchronization sequences are transmitted as parts of a control signal to the receiver. The synchronization sequences are formed of either a dotting sequence or a set of m-sequences. Such synchronization sequences are of high margins and also permit synchronization of the user terminal responsive to a reduced number of calculations.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: March 16, 1999
    Assignee: Ericsson, Inc.
    Inventors: Y-Pin Eric Wang, Stanley L. Reinhold, Amer A. Hassan, Paul W. Dent
  • Patent number: 5850392
    Abstract: In a time division multiple access (TDMA) radiotelephone communications system, a spread spectrum random access channel signal representing a random access message is communicated from a radiotelephone to a central station according to a spreading sequence. In response, a TDMA radiotelephone communications channel is assigned to the radiotelephone. A time division multiplexed radiotelephone communications signal is communicated between the radiotelephone and the central station on the assigned TDMA radiotelephone communications channel over a time division multiplexed carrier frequency band. Preferably, in communicating the spread spectrum random access channel signal, a random access channel signal, representing the random access channel message, is direct sequence modulated according to the spreading sequence to produce a direct sequence modulated random access channel signal. According to a two-stage detection aspect, a synchronization sequence may be associated with a plurality of spreading sequences.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: December 15, 1998
    Assignee: Ericsson Inc.
    Inventors: Yi-Pin Eric Wang, Amer Hassan, Stanley L. Reinhold, Larry W. Massingill
  • Patent number: 5809141
    Abstract: A communication system is disclosed which reduces loop delay when a first wireless phone calls a second wireless phone wherein the first and second phones are served by the same relay station. The communication system includes a relay station for communicating with the first and second wireless phones. A transponder located in the relay station relays signals received from one mobile station on a first frequency band to another mobile station on a second frequency band. In addition, the transponder sends the received signals to a controller which controls the operation of the transponder using control information.
    Type: Grant
    Filed: July 30, 1996
    Date of Patent: September 15, 1998
    Assignee: Ericsson Inc.
    Inventors: Paul W. Dent, Sandeep Chennakeshu, Rajaram Ramesh, Stanley L. Reinhold
  • Patent number: 5796726
    Abstract: In a time division multiple access (TDMA) satellite radiotelephone communications system, a radiotelephone communicates random access channel radiotelephone communications signals to a satellite over a dedicated random access channel uplink carrier frequency band. In response, a time division multiple access channel on a time division multiplexed uplink carrier frequency band different from the dedicated random access channel uplink carrier frequency band is assigned. The radiotelephone communicates time division multiplexed radiotelephone communications signals to the satellite over the allocated time division multiple access channel.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: August 18, 1998
    Assignee: Ericsson Inc.
    Inventors: Amer Hassan, Rajaram Ramesh, Stanley L. Reinhold, Larry W. Massengill, Yi-Pin Eric Wang