Patents Assigned to Mobile Communications Holdings, Inc.
-
Patent number: 6766166Abstract: Antenna steering to put an interfering satellite in the null of the main antenna beam.Type: GrantFiled: September 23, 1998Date of Patent: July 20, 2004Assignee: Mobile Communications Holdings, Inc.Inventor: John E. Draim
-
Patent number: 6597989Abstract: A non-geostationary low earth orbit satellite constellation using elliptical orbits with apogees in the Northern Hemisphere to provide continuous coverage over the Continental United States of America (CONUS), and by extension to the other points in the Northern Hemisphere situated above 25° north latitude. The constellation provides time-continuous visibility with at least one satellite to any point above 25° North latitude. An extension of the constellation has a combination of the elliptical orbits and at least one equatorial orbit to provide virtual global coverage. The distribution of capacity is deployed in proportion to the distribution of populations in the land masses of the earth. Time continuous visibility with at least one satellite is maintained by any point on earth north of the 50° South latitude, with a minimum number of satellites deployed.Type: GrantFiled: November 10, 2001Date of Patent: July 22, 2003Assignee: Mobile Communications Holdings, Inc.Inventor: David Castiel
-
Patent number: 6457678Abstract: An apogee pointed to the sun system which uses an elliptical orbit that is tiled in a way that exploits asymmetry in the Van Allen belts.Type: GrantFiled: August 16, 2000Date of Patent: October 1, 2002Assignee: Mobile Communications Holdings, Inc.Inventor: John E. Draim
-
Publication number: 20020082776Abstract: A non-geostationary low earth orbit satellite constellation using elliptical orbits with apogees in the Northern Hemisphere to provide continuous coverage over the Continental United States of America (CONUS), and by extension to the other points in the Northern Hemisphere situated above 25° north latitude. The constellation provides time-continuous visibility with at least one satellite to any point above 25° North latitude. An extension of the constellation has a combination of the elliptical orbits and at least one equatorial orbit to provide virtual global coverage. The distribution of capacity is deployed in proportion to the distribution of populations in the land masses of the earth. Time continuous visibility with at least one satellite is maintained by any point on earth north of the 50° South latitude, with a minimum number of satellites deployed.Type: ApplicationFiled: November 10, 2001Publication date: June 27, 2002Applicant: Mobile Communications Holdings, Inc.Inventor: David Castiel
-
Patent number: 6249672Abstract: An elliptically shaped cellular phone is elliptical in both the front access, the bottom access and the side access. This elliptical shape enables the telephone to be more easily carried in pocket for example. The telephone includes two slidable modules which are string biased relative to one another. Opening the telephone enables answering and closing the telephone enables hanging up. Even when the telephone is closed, however, one part of the keyboard is still accessible. That part of the keyboard can be used to carry out various functions on an incoming call. One function is blocking the call from passing to voice mail.Type: GrantFiled: March 19, 1999Date of Patent: June 19, 2001Assignee: Mobile Communications Holdings, Inc.Inventor: David Castiel
-
Patent number: 6227497Abstract: Solar array with movable parts that are faced toward the sun during times of the orbit distant from the debris field. When the orbit is within the debris field, the panels are faced edge on to the direction of the orbit.Type: GrantFiled: August 19, 1999Date of Patent: May 8, 2001Assignee: Mobile Communications Holdings, Inc.Inventor: John E. Draim
-
Patent number: 6122596Abstract: A non-geostationary low earth orbit satellite constellation using elliptical orbits with apogees in the Northern Hemisphere to provide continuous coverage over the Continental United States of America (CONUS), and by extension to the other points in the Northern Hemisphere situated above 25.degree. north latitude. The constellation provides time-continuous visibility with at least one satellite to any point above 25.degree. North latitude. An extension of the constellation has a combination of the elliptical orbits and at least one equatorial orbit to provide virtual global coverage. The distribution of capacity is deployed in proportion to the distribution of populations in the land masses of the earth. Time continuous visibility with at least one satellite is maintained by any point on earth north of the 50.degree. South latitude, with a minimum number of satellites deployed.Type: GrantFiled: June 4, 1998Date of Patent: September 19, 2000Assignee: Mobile Communications Holdings, Inc.Inventor: David Castiel
-
Patent number: 6102335Abstract: An elliptical orbit satellite system which describes communication and TT&C with ground stations. Earth stations are located for the circular orbiting satellite in a way such that the line of sight can never include geo synchronous satellites. The ground stations for the elliptically orbiting satellites monitor the position of the satellite, and no antenna communicates with a satellite which is in direct line of sight between the antenna and a geo satellite. Another aspect of the invention locates two TT&C stations, separated in longitude by 90.degree. and configures these stations such that each satellite in each constellation will be able to communicate with one of the two TT&C stations once during each satellite rotation period.Type: GrantFiled: May 8, 1998Date of Patent: August 15, 2000Assignee: Mobile Communications Holdings, Inc.Inventors: David Castiel, John Draim, Jay Brosius, Matthew Schor
-
Patent number: 5979832Abstract: Array of satellites in a planetary gear arrangement. One ring is circular, and within the other ring, which is elliptical. The circular and elliptical rings overlap at a tangent point. At that point, the satellites are evenly spaced for at least a specified parameter, e.g., time of day or geographical location.Type: GrantFiled: July 1, 1998Date of Patent: November 9, 1999Assignee: Mobile Communication Holdings, Inc.Inventor: John E. Draim
-
Patent number: 5931417Abstract: A non-geostationary low earth orbit satellite constellation using elliptical orbits with apogees in the Northern Hemisphere to provide continuous coverage over the Continental United States of America (CONUS), and by extension to the other points in the Northern Hemisphere situated above 25.degree. north latitude. The constellation provides time-continuous visibility with at least one satellite to any point above 25.degree. North latitude. An extension of the constellation has a combination of the elliptical orbits and at least one equatorial orbit to provide virtual global coverage. The distribution of capacity is deployed in proportion to the distribution of populations in the land masses of the earth. Time continuous visibility with at least one satellite is maintained by any point on earth north of the 50.degree. South latitude, with a minimum number of satellites deployed.Type: GrantFiled: June 2, 1992Date of Patent: August 3, 1999Assignee: Mobile Communications Holdings, Inc.Inventor: David Castiel
-
Patent number: 5788187Abstract: An elliptical orbit satellite system which describes communication and TT&C with ground stations. Earth stations are located for the circular orbiting satellite in a way such that the line of sight can never include geo synchronous satellites. The ground stations for the elliptically orbiting satellites monitor the position of the satellite, and no antenna communicates with a satellite which is in direct line of sight between the antenna and a geo satellite. Another aspect of the invention locates two TT&C stations, separated in longitude by 90.degree. and configures these stations such that each satellite in each constellation will be able to communicate with one of the two TT&C stations once during each satellite rotation period.Type: GrantFiled: August 22, 1994Date of Patent: August 4, 1998Assignee: Mobile Communications Holdings, Inc.Inventors: David Castiel, John Draim, Jay Brosius, Matthew Schor
-
Patent number: 5669585Abstract: A special set of elliptical satellite orbits are described which allow preferential coverage of one parameter over another. According to a first modification, the orbits are retrograde, and preferentially cover one geographical location or time of day as compared with another. A second modification uses prograde orbits and allows the apogee of the orbit to be offset a constant amount with respect to the sun, to thereby cover a different time of day relative to the others. According to a special preferred mode of the invention, the apogee is always pointing towards the sun.Type: GrantFiled: November 19, 1996Date of Patent: September 23, 1997Assignee: Mobile Communications Holdings, Inc.Inventors: David Castiel, John E. Draim, Jay Brosius
-
Patent number: 5582367Abstract: A special set of elliptical satellite orbits are described which allow preferential coverage of one parameter over another. According to a first modification, the orbits are retrograde, and preferentially cover one geographical location or time of day as compared with another. A second modification uses prograde orbits and allows the apogee of the orbit to be offset a constant amount with respect to the sun, to thereby cover a different time of day relative to the others. According to a special preferred mode of the invention, the apogee is always pointing towards the sun.Type: GrantFiled: February 16, 1994Date of Patent: December 10, 1996Assignee: Mobile Communications Holdings, Inc.Inventors: David Castiel, John E. Draim, Jay Brosius
-
Patent number: 5361403Abstract: A power amplifier used in a portable, radio frequency transmitter is switched between different modes of operation when transmitting differently modulated carriers. The first mode of operation corresponds to amplitude modulation (AM), while a second mode corresponds to angle modulation techniques such as frequency modulation (FM). A switching network alters the impedance of the power amplifier to match network for matching the impedance of the transmitter antenna in order to achieve maximum efficiency in each mode of operation. Various switching methods and impedance matching circuits are disclosed.Type: GrantFiled: May 17, 1993Date of Patent: November 1, 1994Assignee: Ericsson GE Mobile Communication Holding, Inc.Inventor: Paul W. Dent
-
Patent number: 5357454Abstract: A processor for generating a Walsh transform by substantially simultaneously calculating M combinations of M input values, wherein M=2.sup.N and the input values are two's-complement binary values, has N stages electrically connected in sequence, wherein each stage has a criss-cross network of M conductors electrically connected in a predetermined pattern to a set of M/2 butterflies, the butterflies having devices for calculating sums and differences of respective values presented by their respective criss-cross networks and presenting the sums and differences to respective conductors of the next stage's criss-cross network. The input values are presented to the criss-cross network of the first stage serially and least-significant-bit first, and substantially synchronously therewith, the Walsh transform of the input values is serially produced by the butterflies of the N-th stage.Type: GrantFiled: July 25, 1991Date of Patent: October 18, 1994Assignee: Ericsson GE Mobile Communications Holding, Inc.Inventor: Paul W. Dent
-
Patent number: 5345598Abstract: Measurements of mobile signal strength received at the base station are used to determine the portion of power that should be transmitted by the base station to a particular mobile. Each of a plurality of mobiles measure the relative strength of the base station signal specifically intended for that mobile. The relative strength is compared to either the total base station signal power or to a cumulative ranking of the power of signals intended for other mobiles. That comparison is used to determine whether the mobile should increase or decrease its power.Type: GrantFiled: April 10, 1992Date of Patent: September 6, 1994Assignee: Ericsson-GE Mobile Communications Holding, Inc.Inventor: Paul W. Dent
-
Patent number: 5276764Abstract: A device and a method for processing an analog input signal (S) which varies widely in amplitude, such as speech, for the purpose of reducing the ratio of maximum to minimum amplitude variations of an output signal (P), after the processing, to the square root of the ratio existing before processing in order better to transmit said signal through a channel of restricted dynamic range in the presence of additive noise. The device comprises a converter (2) arranged to change the input signal (S) into a stream of integer numbers (N1,N2,N3 . . .). The numbers in the stream represent in some proportional way the instantaneous value of the input signal (S) divided by a reference voltage (R). This reference voltage (R) is generated by a smoothed amplitude measuring device (4) in proportion to the amplitude of the output signal (P) that is produced, when the number stream is reconverted to an analog signal waveform by means of a converter (6) working with a constant reference voltage.Type: GrantFiled: June 12, 1991Date of Patent: January 4, 1994Assignee: Ericsson-GE Mobile Communications Holding Inc.Inventor: Paul W. Dent
-
Patent number: 5237586Abstract: A modified RAKE receiver, referred to as a WRAKE receiver, is used in CDMA communications. It is particularly adaptable to a subtractive CDMA system. The receiver includes a radio receiver for receiving and demodulating a composite signal of overlapping transmitted signals (spread signals), a sampler to sample the received signals, a selector for selecting different groups of samples, a correlator for correlating the samples with known despreading codes and a comparator to determine the symbol transmitted. The receiver also includes a combiner which combines either different groups of samples together or combines different correlation values together. The sample groups selected are channel independent and combine data received from different time shifts. Likewise, the sample groups for each channel and the correlation values are time-of-arrival independent.Type: GrantFiled: March 25, 1992Date of Patent: August 17, 1993Assignee: Ericsson-GE Mobile Communications Holding, Inc.Inventor: Gregory E. Bottomley
-
Patent number: D466613Type: GrantFiled: October 5, 1999Date of Patent: December 3, 2002Assignee: Mobile Communications Holdings, Inc.Inventor: David Castiel
-
Patent number: D337984Type: GrantFiled: May 1, 1991Date of Patent: August 3, 1993Assignee: Ericsson-Ge Mobile Communications Holding, Inc.Inventor: Richard Lindahl