# US 2019/0174199 A1 · Logical channel number parsing method and device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0174199 A1 - Document ID: US20190174199A1 - Status: Published application - Kind: A1 - Application number: 16/309,965 - Filed: 2016-06-07 - Published: 2019-06-06 - Earliest claimed: 2016-04-14 - Assignees: Shenzhen Tcl Digital Technology Ltd. - Applicants: Shenzhen Tcl Digital Technology Ltd. - Inventors: Yong Fu - Web page: https://patentgrep.com/patent/US20190174199A1 ## CPC - H04N 21/4823: {using a channel name} - H04N 5/50: Tuning indicators; Automatic tuning control - H04N 21/4345: {Extraction or processing of SI, e.g. extracting service information from an MPEG stream} - H04N 21/435: Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream - H04N 21/4355: {involving reformatting operations of additional data, e.g. HTML pages on a television screen (optimising the visualization of content for information retrieval from the Internet G06F16/9577; adaptation of message content in packet-switching networks H04L51/066; media handling at the source in data packet switching networks H04L65/764)} - H04N 21/438: Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network - H04N 21/4383: {Accessing a communication channel} - H04N 21/4622: {Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet (web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859)} - H04N 21/482: End-user interface for programme selection - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract Disclosed are a logical channel number parsing method and a logical channel number parsing device. The method includes: acquiring an operator which provides program signal, and searching channels in sequence according to preset frequency points; acquiring channel information of a current frequency point, and extracting logical channel number data from the channel information, when searching channels according to each of the frequency points; and parsing the logical channel number data according to a prestored logical channel number configuration table corresponding to the operator, to obtain each of attribute parameters comprised in the logical channel number data. The present disclosure simplifies the parsing operation of the logical channel number. ## Claims ### Claim 1 A logical channel number parsing method, wherein, the logical channel number parsing method comprises: acquiring an operator which provides program signal, and searching channels in sequence according to preset frequency points; acquiring channel information of a current frequency point, and extracting logical channel number data from the channel information, when searching channels according to each of the frequency points; and parsing the logical channel number data according to a prestored logical channel number configuration table corresponding to the operator, to obtain each of attribute parameters comprised in the logical channel number data; wherein, the operation of parsing the logical channel number data according to a logical channel number configuration table corresponding to the operator, to obtain each of attribute parameters comprised in the logical channel number data, comprises: acquiring first bit offset and total bits corresponding to each of the attribute parameters comprised in the logical channel number configuration table corresponding to the operator; and parsing the logical channel number data according to the acquired first bit offset and the total bits corresponding to each of the attribute parameters, and determining each of the attribute parameters in the logical channel number data; wherein, based on different operators, the first bit offset and the total bits, corresponding to each of the attribute parameters in the logical channel number, are different. ### Claim 2 (depends on 1) The logical channel number parsing method of claim 1, wherein, the attribute parameters comprise service ID and priority, after the operation of obtaining each of attribute parameters comprised in the logical channel number data, the method further comprises: updating the attribute parameters associated with a stored service ID with the obtained attribute parameters, when the stored service ID is consistent with the service ID in the obtained attribute parameters, and the priority associated with the stored service ID is lower than the priority in the obtained attribute parameters; wherein, each of the attribute parameters obtained is stored in association, when the frequency point of a current frequency-locked operation is the frequency point of the first frequency-locked operation; and storing the obtained attribute parameters, when the stored service ID is different from the service ID in the obtained attribute parameters. ### Claim 3 A logical channel number parsing method, wherein, the logical channel number parsing method comprises: acquiring an operator which provides program signal, and searching channels in sequence according to preset frequency points; acquiring channel information of a current frequency point, and extracting logical channel number data from the channel information, when searching channels according to each of the frequency points; and parsing the logical channel number data according to a prestored logical channel number configuration table corresponding to the operator, to obtain each of attribute parameters comprised in the logical channel number data. ### Claim 4 (depends on 3) The logical channel number parsing method of claim 3, wherein, prior to the operation of acquiring an operator which provides program signal, the method further comprises: customizing corresponding logical channel number configuration tables for different operators, according to different logical channel number regulations of each operator in each country or region, and storing the logical channel number configuration tables in a database. ### Claim 5 (depends on 4) The logical channel number parsing method of claim 4, wherein, the operation of parsing the logical channel number data according to a prestored logical channel number configuration table corresponding to the operator, to obtain each of attribute parameters comprised in the logical channel number data, comprises: inquiring whether there is the logical channel number configuration table in the database matching to the operator, when the logical channel number data is extracted; and parsing the logical channel number data, according to the logical channel number configuration table matching to the operator, to obtain each of the attribute parameters comprised in the logical channel number data, when there is the logical channel number configuration table in the database matching to the operator. ### Claim 6 (depends on 5) The logical channel number parsing method of claim 5, wherein, the operation of parsing the logical channel number data, according to the logical channel number configuration table corresponding to the operator, to obtain each of the attribute parameters comprised in the logical channel number data, comprises: acquiring first bit offset and total bits corresponding to each of the attribute parameters comprised in the logical channel number configuration table corresponding to the operator; and parsing the logical channel number data according to the acquired first bit offset and the total bits corresponding to each of the attribute parameters, and determining each of the attribute parameters in the logical channel number data; wherein, based on different operators, the first bit offset and the total bits, corresponding to each of the attribute parameters in the logical channel number, are different. ### Claim 7 (depends on 3) The logical channel number parsing method of claim 3, wherein, the attribute parameters comprise service ID and priority, after the operation of obtaining each of attribute parameters comprised in the logical channel number data, the method further comprises: updating the attribute parameters associated with a stored service ID with the obtained attribute parameters, when the stored service ID is consistent with the service ID in the obtained attribute parameters, and the priority associated with the stored service ID is lower than the priority in the obtained attribute parameters; wherein, each of the attribute parameters obtained is stored in association, when the frequency point of a current frequency-locked operation is the frequency point of the first frequency-locked operation; and storing the obtained attribute parameters, when the stored service ID is different from the service ID in the obtained attribute parameters. ### Claim 8 (depends on 4) The logical channel number parsing method of claim 4, wherein, the attribute parameters comprise service ID and priority, after the operation of determining each of attribute parameters comprised in the logical channel number data, the method further comprises: updating the attribute parameters associated with a stored service ID with the obtained attribute parameters, when the stored service ID is consistent with the service ID in the obtained attribute parameters, and the priority associated with the stored service ID is lower than the priority in the obtained attribute parameters; wherein, each of the attribute parameters obtained is stored in association, when the frequency point of a current frequency-locked operation is the frequency point of the first frequency-locked operation; and storing the obtained attribute parameters, when the stored service ID is different from the service ID in the obtained attribute parameters. ### Claim 9 (depends on 5) The logical channel number parsing method of claim 5, wherein, the attribute parameters comprise service ID and priority, after the operation of determining each of the attribute parameters in the logical channel number data, the method further comprises: updating the attribute parameters associated with a stored service ID with the obtained attribute parameters, when the stored service ID is consistent with the service ID in the obtained attribute parameters, and the priority associated with the stored service ID is lower than the priority in the obtained attribute parameters; wherein, each of the attribute parameters obtained is stored in association, when the frequency point of a current frequency-locked operation is the frequency point of the first frequency-locked operation; and storing the obtained attribute parameters, when the stored service ID is different from the service ID in the obtained attribute parameters. ### Claim 10 (depends on 6) The logical channel number parsing method of claim 6, wherein, the attribute parameters comprise service ID and priority, after the operation of determining each of the attribute parameters in the logical channel number data, the method further comprises: updating the attribute parameters associated with a stored service ID with the obtained attribute parameters, when the stored service ID is consistent with the service ID in the obtained attribute parameters, and the priority associated with the stored service ID is lower than the priority in the obtained attribute parameters; wherein, each of the attribute parameters obtained is stored in association, when the frequency point of a current frequency-locked operation is the frequency point of the first frequency-locked operation; and storing the obtained attribute parameters, when the stored service ID is different from the service ID in the obtained attribute parameters. ### Claim 11 A logical channel number parsing device, wherein, the logical channel number parsing device comprises: a searching module, configured to acquire an operator which provides program signal, and searching channels in sequence according to preset frequency points; an acquiring module, configured to acquire channel information of a current frequency point, and extracting logical channel number data from the channel information, when searching channels according to each of the frequency points; and a parsing module, configured to parse the logical channel number data according to a prestored logical channel number configuration table corresponding to the operator, to obtain each of attribute parameters comprised in the logical channel number data. ### Claim 12 (depends on 11) The logical channel number parsing device of claim 11, wherein, the logical channel number parsing device further comprises: a configuration module, configured to customize corresponding logical channel number configuration tables for different operators, according to different logical channel number regulations of each operator in each country or region, and storing the logical channel number configuration tables in a database. ### Claim 13 (depends on 12) The logical channel number parsing device of claim 12, wherein, the parsing module comprises: an inquiring unit, configured to inquire whether there is the logical channel number configuration table in the database matching to the operator, when the logical channel number data is extracted; and a parsing unit, configured to parse the logical channel number data, according to the logical channel number configuration table matching to the operator, to obtain each of the attribute parameters comprised in the logical channel number data, when there is the logical channel number configuration table in the database matching to the operator. ### Claim 14 (depends on 13) The logical channel number parsing device of claim 13, wherein, the parsing unit comprises: an acquiring sub-unit, configured to acquire first bit offset and total bits corresponding to each of the attribute parameters comprised in the logical channel number configuration table corresponding to the operator; a parsing sub-unit, configured to parse the logical channel number data according to the acquired first bit offset and the total bits corresponding to each of the attribute parameters, and determining each of the attribute parameters in the logical channel number data; wherein, based on different operators, the first bit offset and the total bits, corresponding to each of the attribute parameters in the logical channel number, are different. ### Claim 15 (depends on 11) The logical channel number parsing device of claim 11, wherein, the attribute parameters comprise service ID and priority, the logical channel number parsing device further comprises: a storage module, configured to update the attribute parameters associated with a stored service ID with the obtained attribute parameters, when the stored service ID is consistent with the service ID in the obtained attribute parameters, and the priority associated with the stored service ID is lower than the priority in the obtained attribute parameters; wherein, each of the attribute parameters obtained is stored in association, when the frequency point of a current frequency-locked operation is the frequency point of the first frequency-locked operation; and store the obtained attribute parameters, when the stored service ID is different from the service ID in the obtained attribute parameters. ### Claim 16 (depends on 12) The logical channel number parsing device of claim 12, wherein, the attribute parameters comprise service ID and priority, the logical channel number parsing device further comprises: a storage module, configured to update the attribute parameters associated with a stored service ID with the obtained attribute parameters, when the stored service ID is consistent with the service ID in the obtained attribute parameters, and the priority associated with the stored service ID is lower than the priority in the obtained attribute parameters; wherein, each of the attribute parameters obtained is stored in association, when the frequency point of a current frequency-locked operation is the frequency point of the first frequency-locked operation; and store the obtained attribute parameters, when the stored service ID is different from the service ID in the obtained attribute parameters. ### Claim 17 (depends on 13) The logical channel number parsing device of claim 13, wherein, the attribute parameters comprise service ID and priority, the logical channel number parsing device further comprises: a storage module, configured to update the attribute parameters associated with a stored service ID with the obtained attribute parameters, when the stored service ID is consistent with the service ID in the obtained attribute parameters, and the priority associated with the stored service ID is lower than the priority in the obtained attribute parameters; wherein, each of the attribute parameters obtained is stored in association, when the frequency point of a current frequency-locked operation is the frequency point of the first frequency-locked operation; and store the obtained attribute parameters, when the stored service ID is different from the service ID in the obtained attribute parameters. ### Claim 18 (depends on 14) The logical channel number parsing device of claim 14, wherein, the attribute parameters comprise service ID and priority, the logical channel number parsing device further comprises: a storage module, configured to update the attribute parameters associated with a stored service ID with the obtained attribute parameters, when the stored service ID is consistent with the service ID in the obtained attribute parameters, and the priority associated with the stored service ID is lower than the priority in the obtained attribute parameters; wherein, each of the attribute parameters obtained is stored in association, when the frequency point of a current frequency-locked operation is the frequency point of the first frequency-locked operation; and store the obtained attribute parameters, when the stored service ID is different from the service ID in the obtained attribute parameters.