Patent
Satellite broadcasting receiving system
Sakurai Masaru,Hiroshi Matsue,Kazuhiro Aoki +2 more
- 25 Mar 1986
32
TL;DR: In this paper, an operator section is operated to direct a parabolic antenna toward a broadcasting satellite and select a desired channel, and a predetermined label is input from a label input part.
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Abstract: In the storing mode, an operator section is operated to direct a parabolic antenna toward a broadcasting satellite and to select a desired channel. After the desired channel is seized, a predetermined label is input from a label input part. The satellite position and the selected channel are stored in a memory with the label attached thereto. When a search operation is performed, the direction of the antenna is gradually adjusted. Whenever the direction of the antenna is adjusted, the receiving frequency is scanned to receive each channel. When a signal is received by the frequency scanning, the type of the satellite is recognized depending on the odd or even group of channels and on whether the antenna is set to horizontally or vertically polarized wave reception. The type of the satellite as recognized, the antenna direction at that time, and the desired receiving channel transmitted from the satellite are stored into memory with a given label attached thereto. In the viewing mode, the stored label is designated and read out from the memory through the label input part. The antenna is directed toward a specific satellite to receive a desired channel, and is also put into a receiving state to receive the predetermined horizontally or vertically polarized wave.
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Citations
Patent
Set top box for receiving and decryption and descrambling a plurality of satellite television signals
Jerrell Wilson
- 13 Nov 1995
TL;DR: In this paper, a system and corresponding method for selecting one of a plurality of simultaneously received encrypted direct broadcast satellite (DBS) signals for decryption and viewing is provided for decoding and viewing.
172
Patent
Automatic antenna pointing system based on global positioning system (GPS) attitude information
Daniel Babitch
- 19 Mar 1993
TL;DR: In this paper, the authors present a system for pointing a directional antenna using two GPS antennas mounted at horizontally opposed extremities of the directional antenna, the placement is such that the GPS antennas lie on a line having a normal vector approximately parallel to a boresight.
136
Patent
Method and apparatus for maximum likelihood estimation direct integer search in differential carrier phase attitude determination systems
Donald T. Knight
- 13 Nov 1992
TL;DR: In this article, the problem of comparing the relative phase of carrier signals received from GPS satellites to determine the roll, pitch and azimuth attitude of ships, aircraft, land vehicles, or survey instruments, accomplishes a maximum likelihood estimation (MLE) optimum solution over the full range of integers and vehicle attitudes.
126
Patent
Receiving satellite switching apparatus
Takayoshi Tsurumaki,Fumiaki Ogata +1 more
- 30 Jun 1992
TL;DR: In this article, a voltage changeover unit applies a DC feed voltage, which is inputted from a receiver, to whichever low-noise block converter corresponds to the satellite and polarized signal designated.
46
Patent
Steerable antenna and receiver interface for terrestrial broadcast
John Goodchilde Norie Henderson,Carl G. Scarpa +1 more
- 04 Nov 2009
TL;DR: In this paper, the antenna pattern is steered so that a source of signal interference, e.g., a multipath signal, will be located in a NULL and the received signal's S/N ratio can be maximized thereby facilitating demodulation.
46
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Patent
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TL;DR: In this paper, a combined remote control unit is provided for wireless communication equipment such as television receivers, frequency modulation or amplitude modulation radio receivers, or other equipment used in wireless communication systems.
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Patent
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TL;DR: In this paper, a parabolic satellite tracking antenna is fitted with a Polaris telescope alignment fixture to adjust the tilt angle at a sine setting derived from specific formula prior to aligning the antenna mount.
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Patent
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Patent
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14
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