Abstract: A far-field speech support with a lens function and an electrical device are provided. The far-field speech support includes: a base, a far-field speech board installation portion disposed on the base and configured to install a far-field speech board, a transparent light guide plate disposed on a bottom side of the far-field speech board installation portion, a buckle structure disposed on the base and configured to install an infrared receiving head assembly, and an infrared reflective portion disposed corresponding to the transparent light guide plate and disposed below the infrared receiving head assembly. The far-field speech support acts as a lens, provides an installation space for the far-field speech board, and facilitates installation of the far-field speech board.

Abstract: Disclosed are a face recognition-based video recommendation method and an apparatus, and a television. The method includes: acquiring a face image, the face image comprising a face of at least one user (S1); acquiring, according to a face recognition algorithm, a face feature set of the at least one user from the face image (S2); comparing the face feature set with face feature sets in an archive (S3); and if the face feature set of the at least one user matches the face feature sets in the archive, displaying a first video recommendation set, and if each face feature set does not match the face feature sets in the archive, display a second video recommendation set (S4). Using the method to recommend videos to users reduces operation steps of the users choosing to watch videos and provides convenience for the users to use.

Abstract: The disclosure provides a method, device, and readable storage medium for adjusting image quality. The display device system selects a focus area of a target image, and outputs a mapping relationship curve of an input luminance value and an output luminance value of the target image. Then, an input luminance value range of pixels in the focus area of the target image is calculated, and upper and lower edge coefficients of the input luminance value range are proportionally adjusted to obtain new upper and lower edge coefficients. The mapping relationship curve is adjusted according to the new upper and lower edge coefficients, thereby adjusting the focus area of the target image.

Abstract: Disclosed in the present application is a power source switch circuit, comprising a switch circuit, a switch control circuit arranged to control the connection and disconnection of the switch circuit, and a negative feedback circuit arranged to feed back the output voltage of the switch circuit to the switch circuit, an input end of the switch circuit respectively being connected to the switch control circuit and a power source, an output end of the switch circuit respectively being connected to a load circuit and the negative feedback circuit, a control end of the switch circuit respectively being connected to the switch control circuit and the negative feedback circuit, and the switch control circuit also being connected to the negative feedback circuit.

Abstract: A method for displaying applications which includes: obtaining the applications installed in a master device and the applications installed in a slave device when the master device is connected with the slave device; if the master device and the slave device have a same application, using the same application as the application to be recommended; obtaining the usage information of the application to be recommended, and determining the priority of the application to be recommended according to the usage information; and displaying the application to be recommended on the master device or the slave device according to a level of the priority. The present disclosure further discloses a system for displaying applications.

Abstract: The present disclosure provides a method and a device for previewing video playback progress, the method includes: detecting user's adjusting of progress position to a target video, and acquiring an adjusted progress section; matching corresponding frame position range according to the progress section; searching a frame difference value corresponding to each of the video frames contained in the frame position range from a pre-established database, and selecting a pre-configured number of frame difference values which are relatively higher from the frame difference values, displaying the multiple video frames corresponding to the pre-configured number of frame difference values searched to user in a preview form. The present disclosure solves the problem of that in existing technology it is unable to rapidly locate to the interesting video content when watching the network video.

Abstract: Disclosed a key value extending method, which comprises: when a browser is started, storing a key value and its mapping value of a loaded first configuration file for initializing a hash mapping table into the hash mapping table, and storing a loaded second configuration file used to define a plurality of key value definitions of the browser into the browser's memory; when a webpage is opened, logging a key value definition that stored in the key value definitions but not found in the webpage into the webpage; and when received a key request from the webpage, searching a mapping value required by the webpage in the hash mapping table according to the key value included in the key request, and returning the searched mapping value to the webpage. This disclosure also discloses a key value extending system.

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.

Abstract: Disclosed is an interface display method, including: acquiring a button value and judging whether the acquired button value is a button value associated with any one of the shortcut applications, if yes, sending a first preset message and a second preset message to each of the shortcut applications; when a first shortcut application having an application identifier being different from the application identifier carried by the first preset message receives the first preset message, judging whether an application interface is in a display state, if yes, terminating the display of the application interface; when a second shortcut application having an application identifier being the same as the application identifier carried by the first preset message receives the first preset message and the second preset message, judging whether an application interface is in a display state, if yes, terminating the display of the application interface, or else displaying the application interface.

Abstract: The present disclosure discloses a backlight self-adaptive adjustment method, including: acquiring a frame of picture every preset time interval when in video mode; judging whether the first picture satisfies a preset backlight self-adaptive adjustment condition, according to the brightness difference value between a first picture currently acquired and a second picture acquired within the current preset time period, and the amount of white pixels of the first picture; acquiring the brightness value of a pixel in a third picture captured from current ambient by a camera, when the first picture satisfies the preset backlight self-adaptive adjustment condition; setting the backlight value of the display video window area of the display screen based on the brightness value of the pixel in the third picture. The disclosure also discloses a backlight self-adaptive adjustment device.

Abstract: Disclosed a smart television starting method, which includes: in a Suspend To RAM (STR) starting process of a smart television, acquiring a signal format and a video display control parameter corresponding to the signal format from a preset memory stored during last shutdown of the smart television after a kernel is recovered completely; setting a register group of each driver associated with video displaying according to the video display control parameter if the stored video display control parameter is obtained; when a signal lock notification sent by a driver layer is received, obtaining a signal format of a current lock signal from the signal lock notification; if the signal format of the lock signal is the same as the stored signal format, releasing a mute state of a to-be-played video corresponding to the current signal and playing the to-be-played video; The disclosure further provides a system for starting smart television.

Abstract: Disclosed is a control method of source switching, including the following operations of: detecting a source signal when a source switching command is received; locking the detected source signal, when the source signal is detected; judging whether the source regarding the locked source signal is a source corresponding to a currently received source switching command; setting image and sound corresponding to the source and playing the source signal, when the source of the locked source signal is the source corresponding to the currently received source switching command. The present application further discloses a control device of source switching. The control method of source switching can effectively prevent occurrence of inconsistency between the source of the locked signal and the current source during a rapid switching of the source.

Abstract: The present disclosure provides a system and a method for retaining color gamut. The system includes: a first converting module, configured to convert a color system of the first color gamut into a first converted color gamut; a second converting module, configured to convert a color system of the second color gamut into a second converted color gamut; a coordinate point mapping module, configured to calculate a coordinate point in the second converted color gamut corresponding to each coordinate point in the first converted color gamut according to a corresponding algorithm; a correspondence table generating module, configured to generate a correspondence table of the first converted color gamut and the second converted color gamut; a standard color comparison table generating module, configured to generate the standard color comparison table according to the correspondence table.

Abstract: Provided is a method and device of Bluetooth adaptive volume adjustment. The method includes: obtaining an adjustable maximum volume value of the Bluetooth audio device and a user adjustable maximum volume value, after a smart terminal being connected with a Bluetooth audio device; obtaining a volume value indicated by a volume adjustment instruction, after receiving the volume adjustment instruction; calculating a volume value of the smart terminal according to the volume value indicated by the volume adjustment instruction, calculating a volume value of the Bluetooth audio device according to the volume value indicated by the volume adjustment instruction, the adjustable maximum volume value of the Bluetooth audio device, the user adjustable maximum volume value; setting the volume of the Bluetooth audio device according to the obtained volume value of the Bluetooth audio device, setting the volume of the smart terminal according to the obtained volume value of the smart terminal.

Abstract: Disclosed is a control method of source switching, including the following operations of: detecting a source signal when a source switching command is received; locking the detected source signal, when the source signal is detected; judging whether the source regarding the locked source signal is a source corresponding to a currently received source switching command; setting image and sound corresponding to the source and playing the source signal, when the source of the locked source signal is the source corresponding to the currently received source switching command. The present application further discloses a control device of source switching. The control method of source switching can effectively prevent occurrence of inconsistency between the source of the locked signal and the current source during a rapid switching of the source.

Abstract: Provided is a method for eliminating an echo. The method includes: obtaining a mixed signal of a mixture of a user's voice given out from the user and the echo given out from a loudspeaker, and obtaining a sound signal given out from the loudspeaker based on the volume of the sound given out from the loudspeaker, the sound signal being used as a reference signal; obtaining a gain coefficient of the reference signal based on comparing the mixed signal with the reference signal, and obtaining a gain signal of the reference signal through the gain coefficient; obtaining a compensation signal of the reference signal based on the gain signal and a corresponding preset compensation coefficient; inverting the compensation signal; and combining the inverted compensation signal with the mixed signal, so as to eliminate the echo given out from the loudspeaker. A system for eliminating the echo is also provided.

Abstract: Disclosed a key value extending method, which comprises: when a browser is started, storing a key value and its mapping value of a loaded first configuration file for initializing a hash mapping table into the hash mapping table, and storing a loaded second configuration file used to define a plurality of key value definitions of the browser into the browser's memory; when a webpage is opened, logging a key value definition that stored in the key value definitions but not found in the webpage into the webpage; and when received a key request from the webpage, searching a mapping value required by the webpage in the hash mapping table according to the key value included in the key request, and returning the searched mapping value to the webpage. This disclosure also discloses a key value extending system.

Abstract: A method for pushing information is disclosed by which a client acquires the statistical characteristic information of a current video frame in real time during video playback on the client; the client then searches a first mapping relationship table consisting of mapping relations between the statistical characteristic information and index values that is established by the client for the index value that matches the acquired statistical characteristic information, and sends the index value thus found to a cloud server; the cloud server searches a second mapping relationship table consisting of mapping relations between the index values and push information that is established by the cloud server for the push information that corresponds to the index value; and finally the client receives and plays or displays the push information. There is also provided a system for pushing information.

Abstract: The present disclosure provides a method for compensating frequency response of audio signal, the method includes: presetting n groups of audio signals with different frequencies, acquiring the minimum signal amplitude value heard by user in each group of audio signals; calculating by a preset gain algorithm to acquire corresponding compensation gain, according to the minimum signal amplitude value; for each group of audio signals, calculating by a preset filtering coefficient algorithm to acquire a corresponding filtering coefficient, according to the frequency of the audio signal, the compensation gain and a preset quality factor; generating a frequency response compensation curve of audio signal according to the filtering coefficient corresponding to the n groups of audio signals; and adjusting an acoustic frequency response of the audio signal according to the compensation curve, and outputting the adjusted audio signal.

Abstract: The present disclosure provides a method for processing a global key of a smart television, in the method, a system side intercepts a detected remote controller key event; when it is determined that the remote controller key event needs to be sent to an application in a broadcast form, the system side generates a broadcast message according to the remote controller key event, and broadcasts the broadcast message; the application preregistering broadcast in the application side receives the broadcast message; when the application which has received the broadcast message determines that the global key processing is needed, a global key processing is conducted according to the remote controller key event in the broadcast message. The present disclosure provides a system for processing a global key of a smart television. The present disclosure can realize the function of processing the global key in any application.