Advanced Digital Broadcast Patente

A method of controlling the streaming of content to a client (300) from a content source (100) using a Dynamic Adaptive Streaming over HTTP (DASH) protocol, the method comprising, at an intermediate device (200) located between the content source (100) and the client (300): receiving a manifest file (310) from the content source (100) in response to a request from the client (300) and editing the received manifest file (310) before delivering it to the client (300), the manifest file (310) including at least one Uniform Resource Identifier (URI) identifying a content element, characterized in that the method further comprises: maintaining, at the intermediate device (200), a local cache (210) of previously obtained segments of the content element; augmenting the manifest file (310) with information from a previously stored version of a manifest for the same content element, retrieved from a memory (230), that includes older segment references not present in the received manifest file (310), so as to extend an available timeshift duration beyond the timeshift depth visible in the received manifest; removing, from the augmented manifest, outdated periods (320) and segment references within a SegmentTimeline (350) whose end times precede a selected cutoff, thereby pruning obsolete content while preserving a continuous timeline of available segments; cleaning the augmented manifest by removing all BaseURL elements, performing SegmentTemplate inheritance for representations (340), and substituting original media and initialization segment references with relative URL placeholders that refer to the locally cached segments in the local cache (210); and updating manifest attributes, including a timeShiftBufferDepth attribute and UTCTiming elements (311), to signal to the client (300) that a locally extended timeshift buffer is available, thereby enabling the client (300) to access historical segments beyond the timeshift depth initially provided by the content source (100).

A remote-controlled device (100), the device comprising a voice interface (120), a remote controller interface (130) and a controller (110); wherein the device is configured to: receive (301), via the voice interface (120), an activation phrase; check (302) whether the application phrase is received from within an allowable activation angle; if so, receive (306), via the remote controller interface (130), a command from the remote controller (51), wherein the command includes a remote controller identifier; store (307) the remote controller identifier as an identifier of a paired remote controller.

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A flow control system for controlling flow in a system of valves (110, 120, 130) connected to a splitter (106) wherein a pressurized fluid (FP) is supplied to the splitter (106) by a pressurizer (101) driven by a motor (102), the flow control system comprising: a plurality of flow sensors (112, 122, 132), each flow sensor (112, 122, 132) connected individually at an output of one of the valves (110, 120, 130) to measure output flow from that particular valve (110, 120, 130); a plurality of flow controllers (111, 121, 131), each flow controller connected individually to one of the valves (110, 120, 130) configured to output a control signal (C1, C2, C3) to control an opening angle of that particular valve (110, 120, 130) in response to an output from a flow sensor (112, 122, 132) connected at the output of that particular valve (110, 120, 130) and an outlet setpoint (S1, S2, S3) provided for that particular valve (110, 120, 130); a main pressure sensor (104) configured to measure pressure of fluid (FP) output from the pressurizer (101); a main flow controller (103) configured to adjust operation of the motor (102) driving the pressurizer (101) such that the pressure of the pressurized flux (FP) measured by the main pressure sensor (104) is equal to a main pressure setpoint (S); and a main system controller (105) configured to set the main pressure setpoint (S) based on the control signals (C1, C2, C3) such as to set the valve (110, 120, 130) that operates at the largest opening angle to an opening angle defined by a valve opening setpoint (FS) that is a value lower than 100%.

A method for establishing communication between a station (100) and an access point (110) in a wireless network, the method comprising the steps of: at the station (100): measuring (301) a received signal strength (AP_RSSI) of the access point (110); and sending (303) to the access point (110) a connection request and the AP_RSSI; at the access point (110): receiving (304) the connection request and the AP_RSSI from the station (100); measuring (305) a received signal strength (S_RSSI) of the station (100); determining (306) whether the AP_RSSI and the S_RSSI are above a threshold and whether the access point (110) has sufficient bandwidth available to communicate with the station (100) and: if so, sending an acceptance of connection request to the station (100) to continue (307) communication with that station and if not, sending a denial of connection request to the station (100).

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A method for determining placement of a wireless, mesh network extender, the method comprising the steps of: establishing a connection with a wireless mesh network comprising a Central Access Point; building (401) a list of points of measurement of signal quality of said wireless, mesh network; outputting (403) a suggestion as to the placement of a new Mesh Access Point on a calculation of potential signal quality derived from said list (401).

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A device for adjusting position of a display screen, the device (400) comprising: a front support (480) for holding the display screen (210); motor means (750, 760, 770) for adjusting the inclination of the front support (480); characterized in that it further comprises: a pair of horizontal infrared (IR) sensors (221, 222) configured to be positioned in parallel to a horizontal axis of the display screen (210); a pair of vertical infrared (IR) sensors (231, 232) configured to be positioned in parallel to a vertical axis of the display screen (210); and a controller (710) configured to measure the intensity of a signal received from a remote control unit (240) by the IR sensors (221, 222, 231, 232), and control the motor means (750, 760, 770) depending on the signal intensity measured by the IR sensors (221, 222, 231, 232).

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A method for configuring a computer interface for a particular user to authorize hybrid operations (140), wherein the hybrid operation comprises a plurality of sub-operations, each sub-operation having associated at least one type of operation, the method comprising: associating (202) a computer interface functional element with the hybrid operation (140), wherein the functional element can be in active or inactive mode; resolving (203) the hybrid operation to the plurality of sub operations and determining the at least one type for the sub operations; determining (204) whether the type of each of the sub operations is authorized for execution by the particular user; if all of the sub operation types are authorized for execution by the particular user, setting (207) the functional element in the active mode and otherwise (206) setting the user interface functional element in the inactive mode.

Method for an automatic channel selection (ACS) in a wireless network, the method being characterized in that it comprises the steps of: building (301) a list of available candidate communication channels; performing (303) measurements for each candidate channel (302) in the list, by calculating: adjacent channel interference (304, IADJ); channel composite noise score (305), which aggregates all noise contributions of the channel, including background noise and channel interference; excluding (308) candidate channels, for which either the adjacent channel interference or the channel composite noise score are off by a selected threshold from the reference values; selecting (309), among the remaining candidate channels, the channel where the least number of other operating devices is detected.

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A method for generating a unique event identifier (ID) for an event in an electronic program guide (EPG) to specify a starting date and time of the event, the method comprising the steps of: providing (201) a 16-bit event variable having an initial value of 0; providing (202) a day variable indicating a day of a month on which the EPG event starts; assigning (203) the value of the day variable to the 5 most significant bits of the event variable; providing (204) a time variable indicating a starting time of the event, calculated in minutes from the midnight of the day on which the event starts; assigning (205) the value of the time variable to the 11 least significant bits of the event variable; and providing the value of the event variable (e) as the event ID readable for 16-bit EPG engines.

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