Patents by Inventor Natividade Albert Lobo
Natividade Albert Lobo 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).
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Patent number: 9274209Abstract: A positioning method comprising: solving a geometric algebraic expression that relates: position vectors for a plurality of antennas relative to a shared origin, a putative position vector for the shared origin and phase information measured at each of the plurality of antennas, to determine a position vector for the shared origin; and positioning an apparatus using the determined position vector for the shared origin.Type: GrantFiled: December 21, 2009Date of Patent: March 1, 2016Assignee: Nokia Technologies OyInventors: Natividade Albert Lobo, Fabio Belloni
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Patent number: 9274228Abstract: A method comprising: receiving first information for defining a first algebraic function that relates a time variable to a first mapped variable; using the function to convert a time variable value to a first value of the first mapped variable e.g. s; converting the first value of the first mapped variable to a second value of a second mapped variable e.g. U; and positioning a satellite by converting the second value of the second mapped variable value to a position value that positions a satellite.Type: GrantFiled: July 30, 2014Date of Patent: March 1, 2016Assignee: Nokia Technologies OyInventor: Natividade Albert Lobo
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Publication number: 20150285919Abstract: A method comprising: receiving first information for defining a first algebraic function that relates a time variable to a first mapped variable; using the function to convert a time variable value to a first value of the first mapped variable e.g. s; converting the first value of the first mapped variable to a second value of a second mapped variable e.g. U; and positioning a satellite by converting the second value of the second mapped variable value to a position value that positions a satellite.Type: ApplicationFiled: July 30, 2014Publication date: October 8, 2015Inventor: Natividade Albert LOBO
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Patent number: 8843251Abstract: A method comprising: receiving first information for defining a first algebraic function that relates a time variable to a first mapped variable; using the function to convert a time variable value to a first value of the first mapped variable e.g. s; converting the first value of the first mapped variable to a second value of a second mapped variable e.g. U; and positioning a satellite by converting the second value of the second mapped variable value to a position value that positions a satellite.Type: GrantFiled: December 22, 2009Date of Patent: September 23, 2014Assignee: Nokia CorporationInventor: Natividade Albert Lobo
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Patent number: 8472414Abstract: A method including enabling a first mode of a first radio communications protocol using a shared radio frequency band and having a first defined schedule for communication in the shared radio frequency band; enabling a second mode of a second radio communications protocol using the shared radio frequency band and having a second defined schedule for communication in the shared radio frequency band; and enabling the first mode and disabling the second mode at a conflict time at which the first defined schedule and the second defined schedule coincide.Type: GrantFiled: January 11, 2008Date of Patent: June 25, 2013Assignee: Nokia CorporationInventors: Seemal Naphade Brandt, Kanji Kerai, Natividade Albert Lobo
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Publication number: 20120274516Abstract: A positioning method comprising: solving a geometric algebraic expression that relates: position vectors for a plurality of antennas relative to a shared origin, a putative position vector for the shared origin and phase information measured at each of the plurality of antennas, to determine a position vector for the shared origin; and positioning an apparatus using the determined position vector for the shared origin.Type: ApplicationFiled: December 21, 2009Publication date: November 1, 2012Applicant: NOKIA CORPORATIONInventors: Natividade Albert Lobo, Fabio Belloni
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Publication number: 20120253563Abstract: A method comprising: receiving first information for defining a first algebraic function that relates a time variable to a first mapped variable; using the function to convert a time variable value to a first value of the first mapped variable e.g. s; converting the first value of the first mapped variable to a second value of a second mapped variable e.g. U; and positioning a satellite by converting the second value of the second mapped variable value to a position value that positions a satellite.Type: ApplicationFiled: December 22, 2009Publication date: October 4, 2012Applicant: NOKIA CORPORATIONInventor: Natividade Albert Lobo
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Publication number: 20100316025Abstract: A method including enabling a first mode of a first radio communications protocol using a shared radio frequency band and having a first defined schedule for communication in the shared radio frequency band; enabling a second mode of a second radio communications protocol using the shared radio frequency band and having a second defined schedule for communication in the shared radio frequency band; and enabling the first mode and disabling the second mode at a conflict time at which the first defined schedule and the second defined schedule coincide.Type: ApplicationFiled: January 11, 2008Publication date: December 16, 2010Inventors: Seemal Naphade Brandt, Kanji Kerai, Natividade Albert Lobo
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Patent number: 7610879Abstract: An animal electronic data collecting device is disclosed which includes a radio transmitter and a radio receiver, a processor for controlling operation of the device, and memory for storing information including a first identifier associated with the device. The processor is arranged to transmit a signal, using the radio transmitter, and to receive, using the radio receiver, one or more signals, each representing a second identifier from other devices, and the processor is arranged to store in the memory each second identifier. The default operating condition of the device is for the radio receiver to be in a receive condition and, upon receipt of a wakeup call, the processor is arranged to place the radio transmitter into a transmit condition.Type: GrantFiled: July 28, 2003Date of Patent: November 3, 2009Inventors: Sarah Margaret Gardner, Natividade Albert Lobo
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Patent number: 7068710Abstract: A method for operation of a receiver of a spread spectrum system. The method includes generating in the receiver an expected signal, the expected signal being a function of time and frequency correlating the received time and frequency of the received signal with time and frequency shifted parameters of the expected signal deriving a computational expression indicative of the value of the correlation at a point displaced in time by the time offset plus the time shift and displaced in frequency by the frequency offset plus the frequency shift, and comparing the correlation measure with the computational expression to determine the time offset and the frequency offset.Type: GrantFiled: December 8, 2000Date of Patent: June 27, 2006Assignee: Nokia CorporationInventors: Natividade Albert Lobo, Tai Dossaji
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Publication number: 20040156430Abstract: A method of testing a signal processing component suitable for a device operating in a spread spectrum system by correlating a comparison output signal with a modified output signal wherein the modification is attributable to the signal processing operation performed by the device under test.Type: ApplicationFiled: December 22, 2003Publication date: August 12, 2004Inventor: Natividade Albert Lobo
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Publication number: 20040116072Abstract: The present invention relates to a transmitting low power radio frequency transceiver capable of participating in a radio network including one or more other low power radio frequency transceivers, comprising storage means arranged to store data indicative of both the address and clock time of each of one or more other lower power radio frequency transceivers, and a transmitter for transmitting the stored data indicative of both the address and clock time of one or more other low power radio frequency transceivers. It also relates to a receiving low power radio frequency transceiver, comprising means for receiving from a first low power radio frequency transceiver a message comprising data indicative of the address and clock time of at least a second low power radio frequency transceiver, different from the first low power radio frequency transceiver, and means for using said data indicative of the address and clock time to page a low power radio frequency transceiver.Type: ApplicationFiled: January 22, 2004Publication date: June 17, 2004Inventor: Natividade Albert Lobo
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Patent number: 6642885Abstract: The present invention provides a method for determining synchronisation of a signal received in a global positioning system receiver and transmitted by a global positioning system satellite, wherein the method comprises the steps of transform coding (14) said received signal so as to transform said received signal from time domain to frequency domain coefficients, dividing respective (18) ones of said frequency domain coefficients by corresponding ones of transform coefficients of the expected transmitted signal associated with said satellite to provide corresponding transform value ratios, and deriving (20, 22) from respective transform value ratios corresponding scaled values of the time delay of the signal between the satellite and the receiver. The invention directs the search for synchronisation to a small set of chips thereby providing an indication of the identity of the synchronisation sequence.Type: GrantFiled: September 17, 2002Date of Patent: November 4, 2003Assignee: Nokia CorporationInventor: Natividade Albert Lobo
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Publication number: 20030091107Abstract: The present invention discloses a method for operation of a receiver of a spread spectrum system in which a signal received at the receiver has a received time and frequency and is transmitted from a transmitter in accordance with a predetermined modulation scheme and having a transmitted time and frequency, there being a time offset and a frequency offset between the received signal and the transmitted signal, and in which the receiver includes a predefined correlation surface in accordance with the predetermined modulation scheme, the method comprising:Type: ApplicationFiled: September 24, 2002Publication date: May 15, 2003Inventors: Natividade Albert Lobo, Tai Dossaji
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Publication number: 20030058978Abstract: The present invention provides a method for determining synchronisation of a signal received in a global positioning system receiver and transmitted by a global positioning system satellite, wherein the method comprises the steps of transform coding (14) said received signal so as to transform said received signal from time domain to frequency domain coefficients,Type: ApplicationFiled: September 17, 2002Publication date: March 27, 2003Inventor: Natividade Albert Lobo
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Patent number: 6259748Abstract: A method of estimating the DC offset and the phase offset for a radio receiver operable in a digital passband transmission system, the method comprising; sampling a received radio signal at the symbol rate of the transmission system to produce a set of data samples, processing each data sample in the set in order to determine a received signal point in signal space for each data sample, determining an associated constellation point in signal space for each received signal point, calculating the DC offset and the phase offset which minimises, for the set of data samples, the sum of the square of the random errors between each received signal point and its associated constellation point.Type: GrantFiled: December 19, 1997Date of Patent: July 10, 2001Assignee: Nokia Mobile Phones LimitedInventors: Terence W Yim, Natividade Albert Lobo
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Patent number: 5960043Abstract: A signal receiver which processes a pulse modulated signal comprises a filter which has a greater gain at half the pulse frequency of the pulse modulated signal than at a lower frequency. This helps to reduce intersymbol interference by enhancing components of the input signal that have pulses of alternating sign.Type: GrantFiled: November 20, 1996Date of Patent: September 28, 1999Assignee: Nokia Mobile Phones LimitedInventors: Natividade Albert Lobo, Peter Eric Quarmby