Plural Pulse Shapes Patents (Class 341/179)
  • Patent number: 8471779
    Abstract: A remote control for a wireless control system includes a controller, at least one actuator for operating the controller, a radio-frequency (RF) transmitter coupled to the controller, an antenna coupled to the RF transmitter, and a housing for the controller, the RF transmitter, the antenna and a power source. The antenna comprises a conductive loop mounted in the housing and being disposed in a first plane. The remote control further comprises a surface on the housing disposed in a second plane substantially parallel to and overlying the first plane. The surface has a conductive material disposed thereon substantially coplanar with the second plane and substantially coextensive with said conductive loop on said first plane.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: June 25, 2013
    Assignee: Lutron Electronics Co., Inc.
    Inventor: Donald R. Mosebrook
  • Patent number: 7779435
    Abstract: Methods and apparatus to export tuning data collected in a receiving device are disclosed. An example method of collecting audience measurement data comprises collecting tuning data within a receiving device, and modulating an LED associated with the receiving device to export the collected tuning data from the receiving device.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: August 17, 2010
    Assignee: The Nielsen Company (US), LLC
    Inventors: Christen V. Nielsen, Mark Richard Cave
  • Patent number: 7539257
    Abstract: A signal generator generates a coded or memory waveform having a trellis structure. A modulator is operative with the signal generator for adding at least one phase pulse to the trellis structure of the coded or memory waveform to create a substantially constant envelope modulated signal that increases the transmitted bits per symbol.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: May 26, 2009
    Assignee: Harris Corporation
    Inventors: James A. Norris, John W. Nieto
  • Patent number: 7030731
    Abstract: Monitoring systems and protocols are disclosed that are flexible in mode operation and format depending on the environment in which they are used. Such monitoring systems and protocols are able to change their utilization automatically, or by received instruction to do so. A location detection system includes one or more low frequency transmitters, one or more radio frequency monitoring tags and one or more receiving devices. The low frequency transmitter transmits location identification information, such as the transmitter ID, to a tag in the vicinity of the transmission. The tag relays the transmitter ID using a higher frequency transmission sent from the tag to the receiver. Communication protocols are disclosed that enable deciphering of multiple tag transmissions starting simultaneously.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: April 18, 2006
    Assignee: RF Code, Inc.
    Inventors: Roc Lastinger, James Rodgers, William Fowler, Dean Freiwald
  • Patent number: 6463104
    Abstract: This invention concerns a method of increasing coding levels. In this method, an increase in levels is achieved with multi-level coding, where uninterrupted periodic sequences such as an alternating current of the same frequency and phase relation are provided as the code elements, and where the code elements are flagged with respect to one another by changes in amplitude; this increase in levels is achieved by the fact that the next code element begins or ends either with a positive or negative half-period, so that two levels can be marked with one code element. This has the effect, for example, that six levels are obtained instead of three. In numbers, this means that with three levels and two, three, four and five places there are 9, 27, 81 and 243 combinations, and with six levels and two, three four and five places there are 36, 216, 1296 and 7776 combinations.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: October 8, 2002
    Inventor: Josef Dirr
  • Publication number: 20020089441
    Abstract: A data transmission system which is particularly useful for a remote control apparatus for an electric fence. The apparatus includes a portable hand held housing with a contact 16 which in use can contact a conductor of an electric fence line. The output of the apparatus includes a resonating circuit comprising inductor L, transformer 14 and a small high voltage capacitor C2. The apparatus can thus generate information embedded within a series of short signal bursts of a frequency within a predetermined frequency range. A receiver coupled to or forming part of an electric fence energiser can receive a signal from the apparatus to control operation of the energiser.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 11, 2002
    Applicant: Tru-Test Limited
    Inventor: Jack Hartstone Reeves
  • Patent number: 6072829
    Abstract: To achieve economy of a transmission path with good quality of transmission and low expenditure compared to previous codes such as 4PSK-64PSK, the invention provides higher-value pulse duration encoding, such that there is provided only an alternating current of a frequency and phase position, with code elements of different pulse durations which are encoded by a different number of periods or half-periods. The following duration pulse is marked by an amplitude change.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: June 6, 2000
    Inventor: Josef Dirr
  • Patent number: 5587797
    Abstract: The present invention relates to process for encoding and transmitting information wherein data, digitalized speech, image, or documents, optionally in colour, are encoded by multilevel combination code with multilevel code elements into a signal, in particular represented by period duration of said signal and/or by a different number of periods in connection with amplitude levels of said signal whereby an amplitude level is used as redundance or quasi level for an identification of code combinations. In the case of digital encoding of the information of a sequence of similar code elements, similar code words, similar lines with associated code words in the sequence are combined in such a way that the number of the sequences are provided in code.
    Type: Grant
    Filed: June 24, 1994
    Date of Patent: December 24, 1996
    Inventor: Josef Dirr
  • Patent number: 5583892
    Abstract: Digital information is transmitted by generating coded signals in the form of pulses on the basis of binary digital information and decoding the coded signals into the binary digital information, the pulses being coded in the time domain and being of at least two distinctly different shapes with respect to their numerical amplitude variation along the time axis of the pulses, the pulses comprising two bits of information in each pulse having energy one, but coded in the way that one bit of information is in the polarity and one bit in the shape, or two bits are in the shape.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: December 10, 1996
    Assignee: Vasko Drakul
    Inventors: Spase Drakul, Ezio Biglieri