Patent application number | Description | Published |
20090021641 | DIGITAL BROADCAST RECEIVER AND RECEIVING METHOD - An unreceivability detector ( | 01-22-2009 |
20120008719 | DIGITAL BROADCAST RECEPTION APPARATUS - An object of the present invention is to provide a digital broadcast reception apparatus that allows a stable viewing even if a reception environment changes along with a movement. In the present invention, based on current position information indicating a current position detected by a current position detection section and broadcast area information stored in a broadcast area information storage section, a search-mode switching control section instructs a tuning control section to select a diversity operation mode if the current position is close to a boundary of a broadcast area, and select an independent reception operation mode if the current position is not close to the boundary of the broadcast area. In the diversity operation mode, a first system and a second system are tuned to the same physical channel, and cooperate with each other to demodulate a digital broadcast signal and a make an output through a diversity process. In the independent reception operation mode, the first system and the second system individually and independently demodulate the digital broadcast signal and make an output | 01-12-2012 |
20120133840 | DIGITAL BROADCAST RECEPTION DEVICE AND DIGITAL BROADCAST RECEPTION METHOD - Disclosed is a digital broadcast reception device that includes a plurality of tuner/demodulator units; a tuning control unit; a current position detection unit for detecting a current position; a channel scan control unit that has one of the plurality of tuner/demodulator units perform tuning for program viewing or listening, and has another one of the plurality of tuner/demodulator units perform a channel scan by tuning to the physical channels sequentially and detecting receivable physical channels; a broadcast area map generation unit for generating broadcast area maps including the receivable physical channels when the channel scan is executed, broadcast service information regarding broadcast content of the physical channels, and receivable position information; and a broadcast area map storage unit for storing the generated broadcast area maps. | 05-31-2012 |
20120192244 | DIGITAL BROADCAST RECEIVER AND DIGITAL BROADCAST RECEIVING METHOD - A digital broadcast receiver includes an affiliated station storage unit that stores affiliated station information in which broadcasting stations are associated with information identifying affiliated stations of the broadcasting stations and reception service areas to which the affiliated stations broadcast, and a switching history storage unit that stores switching history information in which each reception service area is associated with information identifying other reception service areas; when the signal of the program being viewed/listened to becomes currently unreceivable, a tuning control unit identifies, from the switching history information, another reception service area to which switching was performed from the reception service area to which the broadcasting station broadcasting the program being viewed/listened to is broadcasting, determines an affiliated station in the identified other reception service area that is an affiliated station of the broadcasting station broadcasting the program being viewed/listened to, and tunes to the identified affiliated station. | 07-26-2012 |
20120236933 | DIGITAL BROADCAST RECEIVING APPARATUS, DIGITAL BROADCAST RECEIVING METHOD AND COMPUTER PROGRAM - A digital broadcast receiving apparatus with enhanced tuning speed is provided. The digital broadcast receiving apparatus includes a data separating unit that separates the encoded stream of a tuned broadcast program and a plurality of latest tuning information from a digital broadcast stream, on the basis of stored tuning information recorded in a tuning information table, a decoding unit that performs a decoding process on the separated encoded stream, and a tuning control unit. The tuning control unit concurrently executes a first reception confirmation process to decide whether first tuning information included in the latest tuning information is consistent with the stored tuning information and a second reception confirmation process to decide whether second tuning information in the latest tuning information is consistent with the stored tuning information. The tuning control unit executes the first and second reception confirmation processes concurrently with the decoding process. | 09-20-2012 |
20130136212 | DIGITAL BROADCAST RECEIVER - The present invention provides a digital broadcast receiver which reduces the time needed for channel scans by performing efficient channel scanning when broadcasts in a plurality of broadcast protocols are received. As a first phase channel scan, a first controller and a second controller divide a plurality of channels included in an overlapping frequency band of a first broadcast protocol and a second broadcast protocol, and execute parallel channel scans. After the first phase channel scan, the first controller scans channels in which electrical signals generated from electromagnetic waves received by a second tuner in the first phase channel scan could not be demodulated by a second demodulator, and the second controller scans channels in which electrical signals generated from electromagnetic waves received by a first tuner could not be demodulated by a first demodulator. | 05-30-2013 |
20140173679 | DIGITAL BROADCAST RECEIVER AND INFORMATION UPDATING METHOD THEREFOR - A digital broadcast receiver on a mobile body includes: a tuner that receives a broadcast signal of a physical channel; a signal intensity detector that detects a signal intensity of the broadcast signal; a current position detector that detects a current position of the mobile body; a movement direction detector that detects a movement direction of the mobile body; a reception judging unit that controls the tuner to judge whether the physical channel can be received; an area information storage unit that stores receivable area information indicating a receivable area of the physical channel; and an area information updating unit that determines, when it is judged that the physical channel can be received, a position apart from the current position in the movement direction according to the signal intensity as a receivable position, and updates the receivable area information to extend the receivable area to the receivable position. | 06-19-2014 |
20150020140 | DIGITAL BROADCASTING RECEPTION APPARATUS AND DIGITAL BROADCASTING RECEPTION METHOD - A digital broadcasting reception apparatus ( | 01-15-2015 |