Class / Patent application number | Description | Number of patent applications / Date published |
348732000 | Search tuning | 37 |
20080284918 | System and Method for Automatic Cable-Only Tuning - The disclosed embodiments relate to a system and method that initializes a display device. An exemplary embodiment comprises scanning an input signal to determine the presence of a cable television signal, proceeding to normal operation of the display device if the cable television signal is present in the input signal, scanning the input signal for an over-the-air television signal if the cable television signal is not present in the input signal, and providing a message indicating potential inappropriate reception of over-the-air signals if the over-the-air television signal is present in the input signal. | 11-20-2008 |
20090059089 | Method for station sorting and storage in a television or radio set - In a method for sorting and storing stations in a television or radio broadcasting set, the received stations are firstly represented in an arbitrary order in a matrixlike list or table on a display device. An input field into which a user inputs a program location number is represented for each station. The input may be effected by directly inputting one or more numerals, or be selecting a number from a list of available program location numbers. Selection fields whose selection brings about a deletion of the respective station or a shift to the end of the list may additionally be represented. Once the input or selection fields have been filled in or selected, the stations are sorted in accordance with the inputs. The sorted list is then stored. | 03-05-2009 |
20090079882 | ANALOG TV SIGNAL DECODING USING DIGITAL TUNER WITH I AND Q OUTPUT - A dual use TV receiver for both analog TV and DTV using a digital tuner for processing analog signals and converting same to its respective I and Q components is provided. A method for producing a television receiver comprising the step of providing a digital tuner for processing analog signals to its respective I and Q components is provided. | 03-26-2009 |
20090102981 | SPECTRUM SENSING FUNCTION FOR COGNITIVE RADIO APPLICATIONS - A method and system are disclosed to detect a broad class of signals including Advanced Television Systems Committee (ATSC) digital television (DTV) and wireless microphone signals. This signal detection method performs in Gaussian noise, employing Higher Order Statistics (HOS). Signals are processed in time and frequency domains as well as by real and imaginary components. The spectrum sensing employed also supports Denial of Service (DoS) signal classification. The method can include parameters that may be tailored to adjust the probability of detection and false alarm. | 04-23-2009 |
20090115913 | Digital Television Receiving Device and a Method for Adjusting Digital Television Signals - The present invention relates to a digital television receiving device and a method for adjusting digital television signals thereof. The method comprises: receiving a GPS signal; obtaining a moving velocity of the digital television receiving device according to the GPS signal; looking up a parameter table to obtain one frequency adjusting value of the digital television signal corresponding to the moving velocity; and adjusting the frequency of the received digital television signal according to the frequency adjusting value of the moving velocity. | 05-07-2009 |
20090122205 | Method and Apparatus for Performing a Channel Search - A receiver, such as an HDTV receiver or a Personal Video Recorder (PVR), includes a plurality of tuners. Each tuner is adapted to receive television signals (RF | 05-14-2009 |
20090135309 | METHOD AND APPARATUS FOR SPEEDING UP ATSC CHANNEL SEARCHING - A method of reducing channel scan time is achieved by knowing important location information such a zip code. This allows a locally stored database of available broadcast channels to be used to skip unused frequencies and to allow finding the direction of the most likely broadcast station. Once one active channel is located, it is possible to calculate the most likely direction to search for the remaining active channels in the data base using a smart antenna. | 05-28-2009 |
20090153748 | Apparatus and Method for Sensing an ATSC Signal in Low Signal-To-Noise Ratio - A Wireless Regional Area Network (WRAN) receiver includes a tuner for tuning to one of a number of channels, and a broadcast ATSC (Advanced Television Systems Committee) signal detector. The tuner is calibrated as a function of a received ATSC signal. The broadcast ATSC signal detector can be a coherent or a non-coherent ATSC signal detector. | 06-18-2009 |
20090161025 | METHODS AND SYSTEMS FOR FAST CHANNEL CHANGE BETWEEN LOGICAL CHANNELS WITHIN A TRANSPORT MULTIPLEX - A system, method and computer program product are provided for fast channel change between logical channels within a transport multiplex. By reducing the amount of time it takes to acquire and display a tuned channel, fast channel change can improve a viewer's experience. In exemplary embodiments of the present invention, a fast channel change system can simultaneously decode channel data for each channel in a transport multiplex, reconstruct all access units for each channel and send them out on their respective channel stream in the order that each access unit completes to a streamer, store and maintain a minimum amount of channel data in a buffer in each streamer, and output channel data from a streamer corresponding to a tuned channel to a media player. In exemplary embodiments of the present invention data can be input to a de-multiplexer and divided into separate video and audio streams prior to being input to the media player. Exemplary embodiments of the present invention can be utilized in various video applications, such as, for example, Sirius Satellite Radio's Backseat TV™ service. | 06-25-2009 |
20090262253 | DIGITAL BROADCAST RECEIVER - [Object] To provide a digital broadcast receiver capable of performing a channel scan in a relatively short time. | 10-22-2009 |
20100053460 | BROADCAST RECEPTION APPARATUS - A broadcast reception apparatus includes a receiving portion receiving a broadcast signal, an automatic channel-addition portion additionally registering a receivable channel automatically, an input portion accepting instructions from a user, and a channel-registration canceling portion for canceling the registration of a channel, so commanded from the input portion, to be canceled as a receivable channel and for storing in a memory portion its channel information as the information of a canceled channel. When the same channel information as that of the unregistered channel is in the channel information stored in the memory portion, the automatic channel-addition portion does not register the unregistered channel as a receivable channel. | 03-04-2010 |
20100060801 | Television Receiver - A TV receiver transmits video data from its tuner unit to its monitor unit via wireless transmission by using a channel shared with radar. When the tuner unit receives a program to be viewed, a recorder/player starts recording of the received program. When wireless transmission of the received program cannot be started on time at the program start time because of detecting an unused channel for wireless transmission, or when a radar wave in the shared channel is detected after starting wireless transmission and then wireless data transmission is interrupted, the recorder/player plays back on a time-shift basis the program recorded on the recording medium, and the program data played back is transmitted to the monitor unit. The TV receiver is capable of preventing the user from missing a program that he wants to view even when wireless data transmission is interrupted. | 03-11-2010 |
20100123833 | CHANNEL SELECTING DEVICE, CHANNEL SELECTING METHOD, AND PROGRAM - A channel selecting device includes: a tuner unit selecting a broadcast wave signal of a channel-selection frequency corresponding to supplied frequency information and frequency-converting the broadcast wave signal into an intermediate frequency signal; and a demodulation unit checking whether a desired carrier exists on the basis of the intermediate frequency signal from the tuner unit, setting a carrier frequency as the channel-selection frequency when checking that the desired carrier exists, performing a first process of determining whether a current zone is a zone of which a frequency should be set lower than the channel-selection frequency so as to raise the channel-selection frequency and a second process of determining whether the current zone is a zone of which a frequency should be set higher than the channel-selection frequency so as to lower the channel-selection frequency, and setting the channel-selection frequency as a target just-tuning frequency. | 05-20-2010 |
20100165214 | METHOD AND APPARATUS FOR DETECTION OF CABLE AND OFF-AIR SIGNALS IN A DUAL OR HIGHER TUNER SET-TOP TERMINAL - Systems and methods are provided for minimizing cable and off-air signal detection on separate cable and off-air input jacks in a set-top terminal with two or more tuners. The systems and methods employ logic to progress through different scan configurations with different input jack/signal detection assignments to minimize signal detection delay. Tuners are pooled for a given input jack/signal assignment, scanned frequencies are queued and carried to the next scan configuration, and user input is employed, whenever possible. The systems and methods are of particular value for retail applications, where users may install cable, off-air, or both sources incorrectly to their set-top terminal's cable and off-air input jacks. | 07-01-2010 |
20100171886 | PRESENTATION OF READING SERVICE CHANNELS TO THE VISUALLY IMPAIRED - Systems and methods are disclosed to automatically provide an audio sub-channel for a reading service to a visually impaired user. An audio service system includes a control module and a transmit module. The control module is operable to identify an audio sub-channel for a reading service available for reception within a broadcast area of a television content provider. The control module is further operable to identify a set of commands for a television tuner instructing the television tuner to tune to the audio sub-channel. The transmit module is operable to transmit the set of commands to the television tuner so the visually impaired user can listen to the audio sub-channel for the reading service. | 07-08-2010 |
20100177252 | METHOD AND SYSTEM FOR SCANNING TELEVISION CHANNELS - A method of scanning television channels at initial setup. The method includes at a first power mode, automatically scanning for channels using a first scanning setup procedure during which the television is unusable by a user. The first power mode is when the television is at a full power mode. The detected channels are automatically provided for use by the television upon completion of the first scanning setup procedure. The method further includes automatically scanning for channels using a second scanning setup procedure at a second power mode following the first power mode. The second power mode is at a lower power mode than the first power mode, and the second scanning setup procedure is more time consuming in comparison to the first scanning setup procedure. Additional channels not detected during the initial setup by the first scanning setup procedure are automatically detected at the second power mode. | 07-15-2010 |
20100225830 | Television channel scan - In accord with embodiments and implementations consistent with the present invention, rather than perform a full scan of every frequency to find a channel, the tuner is programmed to find a reasonable sample of channels. For example, the tuner can search for at least two or three (generalized as N) channels to determine the frequency plan of the channels (by virtue of detection of at least one channel) and then use one of the known plans to directly identify the frequency map. The process can then step quickly through each frequency, without optimizing or fine tuning each channel, to determine the existence of a channel. With this process the number of tunable channels is found quicker and the initial setup time is shortened. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract. | 09-09-2010 |
20100253858 | SYSTEM AND METHOD FOR TUNING AN ELECTRONIC DEVICE - There is provided a system and method for tuning an electronic device. More specifically, in one exemplary embodiment, there is provided a method comprising maintaining a modulation type search order list of a plurality of modulation types and periodically re-ordering the modulation type search order list based on a first specified number of most recently tuned channels. The exemplary method further comprises tuning a requested channel whose modulation type is not known by selecting a one of the plurality of modulation types in order from the modulation type search order list until a modulation type corresponding to the requested channel is determined. | 10-07-2010 |
20100283915 | Frequency Redirection for Inband Signaling - A channel remapping pre-notification (RPN) message is transmitted in each of multiple frequencies prior to movement of data associated with one or more virtual channels to one or more different frequencies. The RPN message is also sent prior to transmission of a Virtual Channel Table (VCT) reflecting channel movement. If a receiving device is unable to find data associated with a selected channel subsequent to the channel movement, the stored RPN information can be used to identify a new frequency for that selected channel. | 11-11-2010 |
20100309388 | METHOD FOR PERFORMING CHANNEL SCAN WITHIN A MULTI-CHANNEL BROADCASTING PROGRAM RECEIVER, AND ASSOCIATED MULTI-CHANNEL BROADCASTING PROGRAM RECEIVER - A method for performing channel scan within a multi-channel broadcasting program receiver includes: calculating a plurality of frequency representatives of intermediate frequency (IF) signals of one or more received multi-channel broadcasting program signals within a specific band of a plurality of bands; and locating a video IF signal out of the IF signals according to the frequency representatives in order to determine a frequency of a video carrier corresponding to the specific band, wherein the frequency of the video carrier is utilized as a reference for tuning to an associated channel. An associated multi-channel broadcasting program receiver includes a tuner, a processing module, a memory and a controller. The tuner is arranged to select one of a plurality of channels. In particular, the controller controls channel scan and further utilizes the frequency of the video carrier corresponding to the specific band as the reference for tuning to the associated channel. | 12-09-2010 |
20110013092 | APPARATUS AND METHOD OF SWITCHING CHANNEL UNDER WIRELESS NETWORK CIRCUMSTANCES - An apparatus and method of switching a channel under wireless network circumstances is provided, which can secure network resources by performing channel switching and channel bonding with an adjacent network if the network resources of the currently participating network are insufficient in performing wireless data communications. The apparatus includes a message analysis unit analyzing at least one received channel information message and confirming whether a channel corresponding to the channel information message and a channel adjacent to the channel are usable, a channel switching unit performing a channel switching with a usable target channel among the channels with reference to whether the confirmed channel and the adjacent channels are usable, in accordance with a result of determining whether network resources of a currently used channel are insufficient, and a channel bonding unit performing a channel bonding between the channel-switched target channel and the adjacent channels. | 01-20-2011 |
20110085088 | SYSTEM AND METHOD FOR COORDINATION OF ANALOG AND DIGITAL CHANNEL MAPPING - There is provided a system and method for coordinating analog and digital channel mapping features. More specifically, in one embodiment, there is provided a method, comprising performing an analog channel search to identify available analog channels, storing a list of the available analog channels found during the analog channel search, and performing a digital channel search after performing the analog channel search, wherein the digital channel search excludes the available analog channels in the list from being searched. | 04-14-2011 |
20110109811 | FAST SERVICE SCAN - A method of performing a service scan for available channels across a bandwidth of an input signal, the method comprising the steps of: acquiring a power spectrum of the input signal bandwidth; analysing the power spectrum to identify a list of candidate channels, each candidate channel being identified by at least a centre frequency; processing each of the candidate channels in a receiver unit to extract service information, if present, relating to the candidate channel; and storing the service information for the channel in a memory. | 05-12-2011 |
20110141377 | DIGITAL BROADCAST RECEIVER AND METHOD FOR RECEIVING DIGITAL BROADCAST - The digital broadcast receiver | 06-16-2011 |
20120019732 | METHOD FOR OPERATING IMAGE DISPLAY APPARATUS - A display apparatus controls display of information in first and second regions of a screen. The first region includes first search results and the second region includes second search results generated by one or more searches performed based on a search query. The first search results match the search query, and the second search results do not match the search query but have at least one attribute in common with the first search results. The first and second search results corresponding to different categories including at least two of television programs, service provider content, or stored data files. | 01-26-2012 |
20120105736 | Rapid Television Channel Scan Using Frequency Plans to Identify Channels - In accord with embodiments and implementations consistent with the present invention, rather than perform a full scan of every frequency to find a channel, the tuner is programmed to find a reasonable sample of channels. For example, the tuner can search for at least two or three channels to determine the frequency plan of the channels (by virtue of detection of at least one channel) and then use one of the known plans to directly identify the frequency map. The process can then step quickly through each frequency, without optimizing or fine tuning each channel, to determine the existence of a channel. With this process the number of tunable channels is found quicker and the initial setup time is shortened. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract. | 05-03-2012 |
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 |
20130076988 | Multiplex Application Method for Channel Search and Television Using the Same - A multiplex application method for channel search which is used for a television. This method includes following steps of a channel performing a search operation, wherein the television executes an application simultaneously when the channel search operation is executed; and finishing the channel search operation. In other words, the television executes the channel search operation and the application at the same time for thereby providing the television with add-on values. | 03-28-2013 |
20130141650 | IMAGE DISPLAY APPARATUS, SERVER, AND METHODS FOR OPERATING THE SAME - An image display apparatus, a server, and methods for operating the same are disclosed. The method for operating an image display apparatus includes entering channel scan mode, receiving a broadcast signal of a detected broadcast channel in the channel scan mode, extracting, in the presence of an image representing a channel name in a broadcast image of the broadcast signal, the image representing a channel name from the broadcast image, determining channel number information and channel name information about the broadcast channel based on the extracted image, and storing the channel number information and the channel name information about the broadcast channel in a channel map. | 06-06-2013 |
20130278836 | DISPLAY APPARATUS - A display apparatus includes an image processor commonly provided to a plurality of channels, and configured to provide processing to an image signal of a selected channel selected by a channel switch in accordance with a parameter, a parameter acquirer commonly provided to the plurality of channels, and configured to obtain the parameter in accordance with a format of the image signal of the selected channel, a memory controller configured to hold the parameter for a first channel in a memory while a detector detects the image signal in the first channel even after the channel switch switches from the first channel to a second channel, and to delete the parameter when the detector detects no image signal in the first channel, and an image processing controller configured to set the parameter to the image processor without acquiring a new parameter from the parameter acquirer. | 10-24-2013 |
20140009688 | METHOD AND SYSTEM FOR SCANNING TELEVISION SYSTEMS USING A FIRST QUICK SCAN AND A SECOND SLOWER SCAN - A method of scanning television channels at initial setup. The method includes at a first power mode, automatically scanning for channels using a first scanning setup procedure during which the television is unusable by a user. The first power mode is when the television is at a full power mode. The detected channels are automatically provided for use by the television upon completion of the first scanning setup procedure. The method further includes automatically scanning for channels using a second scanning setup procedure at a second power mode following the first power mode. The second power mode is at a lower power mode than the first power mode, and the second scanning setup procedure is more time consuming in comparison to the first scanning setup procedure. Additional channels not detected during the initial setup by the first scanning setup procedure are automatically detected at the second power mode. | 01-09-2014 |
20140139748 | RAPID TELEVISION CHANNEL SCAN USING FREQUENCY PLANS TO IDENTIFY CHANNELS - A television channel scan method involves successively scanning a sample number of channels within a first television channel plan to determine whether or not any channel was detected by sequentially tuning the channels at a tuner. If at least one channel is detected in the first television channel plan: then retrieving a map for all channels in the first television channel plan, and selecting all channels within the first television channel plan as channels available for a user to tune. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract. | 05-22-2014 |
20140267930 | RECEPTION APPARATUS AND ELECTRONIC EQUIPMENT - A reception apparatus includes a plurality of reception circuits disposed in a predetermined arrangement state, a plurality of local oscillation circuits each of which supplies a local oscillation signal to each of the plurality of reception circuits, and a control unit that controls each reception circuit and each local oscillation circuit. When there is a specific reception circuit to which a local oscillation signal is supplied, of which frequency matches or is close to a passing frequency during a search of a reception signal with a tuning request, the control unit performs the search of the reception signal with the tuning request in a reception circuit disposed at a position far from the specific reception circuit. | 09-18-2014 |
20140354890 | METHOD, COMPUTER-READABLE STORAGE MEDIUM, RECEPTION APPARATUS, AND INFORMATION PROVIDING APPARATUS FOR IDENTIFYING AVAILABLE CHANNELS AND/OR SERVICES - A method, computer-readable storage medium, reception apparatus, and information providing apparatus for generating a list of accessible channels. The method includes retrieving from a primary server terrestrial broadcast channel information associated with a predetermined geographical region. The terrestrial broadcast channel information includes, for each broadcaster associated with the predetermined geographical region, one or a combination of a broadcast channel and a secondary server location associated with the respective broadcaster. Service information is retrieved, for each of at least one broadcaster associated with the predetermined geographical region, from a secondary server associated with the respective broadcaster based on the terrestrial broadcast channel information. The reception apparatus determines, for each of the at least one broadcaster associated with the predetermined geographical region, whether the broadcast channel associated with the respective broadcaster is receivable by the reception apparatus. The reception apparatus generates the list of accessible channels based on the determination. | 12-04-2014 |
20150103255 | APPARATUS AND METHOD FOR SEARCHING BROADCAST CHANNELS - An apparatus for searching broadcast channels may include a broadcast signal distributing unit distributing a broadcast signal, a first channel searching unit searching an analog broadcast channel in the distributed broadcast signal, a second channel searching unit searching a digital broadcast channel in the distributed broadcast signal, and a controlling unit receiving search results from the first channel searching unit and the second channel searching unit, generating effective channel information regarding the analog broadcast channel and the digital broadcast channel using the received search results, and controlling the second channel searching unit to skip a channel search in a frequency band in which the analog broadcast channel is present using the generated effective channel information regarding the analog broadcast channel when the search for the analog broadcast channel by the first channel searching unit is terminated first. | 04-16-2015 |
20150319395 | TELEVISION RECEIVER, TELEVISION BROADCAST RECEIVING METHOD AND MOBILE TERMINAL - There is provided an apparatus comprising a plurality of antenna terminals, a first switch configured to select an antenna terminal of the plurality of antenna terminals, a second switch configured to receive an output of the antenna terminal from the first switch and divide the output of the antenna terminal into a first output and a second output, a surface acoustic wave filter configured to receive the first output from the second switch, and a tuner/decoder configured to receive an output of the surface acoustic wave filter and the second output. | 11-05-2015 |
20150373297 | RECEIVING DEVICE AND ELECTRONIC APPARATUS - A receiving device includes a plurality of receiving circuits, a plurality of local oscillation circuits that supply local oscillation signals to each of the plurality of receiving circuits, and a control unit that controls each receiving circuit and each local oscillation circuit. The control unit provides a plurality of search algorithms for searching for a reception frequency in each of the receiving circuits, and selects a search algorithm at the time of searching for the reception frequency of each receiving circuit according to a frequency which is handled by other receiving circuit or other local oscillation circuit. | 12-24-2015 |