CN111629257A

CN111629257A - Method for determining appointment starting time and display equipment

Info

Publication number: CN111629257A
Application number: CN202010463359.8A
Authority: CN
Inventors: 张宜兵; 汪桂兰; 焉为家
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2020-09-04
Anticipated expiration: 2040-05-27
Also published as: CN111629257B

Abstract

The application discloses a method for determining reservation starting time and display equipment, which are used for taking network time corresponding to code stream time as the corrected reservation starting time in the display equipment, so that when a program is locally recorded based on the corrected reservation starting time, a recorded channel just starts to play the recorded program. The method comprises the following steps: receiving broadcast program scheduled recording information input by a user; the reserved recording information at least comprises reserved starting time; acquiring current code stream time corresponding to a digital broadcast signal and current network time corresponding to a system; calculating the time difference between the current code stream time and the current network time; and correcting the reserved starting time based on the reserved starting time and the time difference value, and storing reserved recording information according to the corrected reserved starting time.

Description

Method for determining appointment starting time and display equipment

Technical Field

The present application relates to the PVR technology field, and in particular, to a method for determining a reservation starting time and a display device.

Background

A Personal Video Recorder (PVR) is an important function of the smart television, and an important function point of the PVR is that recording can be scheduled. The reserved recording means that a PVR function of a television is started when a reserved start time comes, a television program is recorded in a built-in hard disk of the PVR, and the recording is automatically stopped after the reserved end time comes, so that a user can watch the recorded television program from the built-in hard disk at any time.

Except for the north american market, most of the smart televisions in overseas markets support the PVR scheduled recording function. In some laggard areas, there is a deviation between the DTV code stream time for channel use and the network time used by the television system, some channels are faster than the network time, and some channels are slower than the network time, so that when the reservation start time comes, the actual reserved program starts or does not start, which affects the normal PVR recording.

Disclosure of Invention

In view of the above, the present application provides a method for determining a reserved starting time and a display device, so as to ensure that the reserved starting time coincides with a playing time of a reserved program.

Specifically, the method is realized through the following technical scheme:

in a first aspect, the present application provides a display device comprising:

a display;

a tuning demodulator for receiving and decoding a broadcast program carried by a digital broadcast signal;

a user interface for receiving user input;

a controller configured to perform:

receiving broadcast program scheduled recording information input by a user; the reserved recording information at least comprises reserved starting time;

acquiring current code stream time corresponding to a digital broadcast signal and current network time corresponding to a system;

calculating the time difference between the current code stream time and the current network time;

and correcting the reserved starting time based on the reserved starting time and the time difference value, and storing reserved recording information according to the corrected reserved starting time.

In a second aspect, the present application provides a display device comprising:

a display;

a user interface for receiving user input;

a controller configured to perform:

based on the reservation starting time and the time difference value, correcting the reservation starting time, and storing reservation recording information according to the corrected reservation starting time;

receiving an instruction which is input by a user and indicates to check the reserved recording record, and displaying the reserved recording record containing the reserved recording information on a display; wherein the reserved recording information displays the reserved starting time.

In a third aspect, the present application provides a display device comprising:

a display;

a user interface for receiving user input;

a controller configured to perform:

receiving first broadcast program scheduled recording information in a first channel input by a user; the reserved recording information at least comprises reserved starting time;

receiving an instruction of switching to other channels or other applications input by a user, and displaying the broadcast programs of the other channels or the services provided by the other applications in a display; and displaying prompt information for indicating whether to start reserved recording or not when the current network time is determined to reach the corrected reserved starting time.

In a fourth aspect, the present application provides a display device comprising:

a display;

a user interface for receiving user input;

a controller configured to perform:

receiving an instruction of switching to other channels or other applications input by a user, and displaying the broadcast programs of the other channels or the services provided by the other applications in a display; when the current network time is determined to reach the corrected reservation starting time, displaying prompt information for indicating whether to start recording or not;

receiving an instruction input by a user and used for determining to start recording, switching from the other channels or the other applications to the first channel, and starting to record the first broadcast program; wherein the reservation starting time is displayed in the channel information of the first channel.

In a fifth aspect, the present application provides a method for determining a reservation starting time, the method comprising:

In a sixth aspect, the present application provides a method for determining a reservation starting time, the method comprising:

In a seventh aspect, the present application provides a method for determining a reservation starting time, where the method includes:

In an eighth aspect, the present application provides a method for determining a reservation starting time, including:

In the above embodiment, the display device may obtain the scheduled recording start time in the scheduled recording information of the broadcast program, calculate the time difference between the current code stream time of the digital broadcast signal corresponding to the broadcast program and the current network time corresponding to the system, correct the scheduled recording start time according to the time difference, and make up for the difference between the code stream time of the broadcast program and the network time of the system, so that the corrected scheduled recording start time is used as the actual recording start time of the broadcast program.

Drawings

Fig. 1A schematically illustrates an operation scenario between the display device 200 and the control 100;

fig. 1B is a block diagram schematically illustrating a configuration of the control apparatus 100 in fig. 1A;

fig. 1C is a block diagram schematically illustrating a configuration of the display device 200 in fig. 1A;

a block diagram of the architectural configuration of the operating system in the memory of the display device 200 is illustrated in fig. 1D.

FIGS. 2A-2D are schematic diagrams illustrating a GUI provided by display device 200;

fig. 3 is a process flow chart illustrating a first method of determining a reservation starting time;

FIG. 4A is a diagram illustrating the display of codestream time;

a schematic diagram showing network time is exemplarily shown in fig. 4B;

fig. 5 is a schematic diagram illustrating a comparison of scheduled recording times;

fig. 6 is a process flow chart illustrating a second reservation start time determination method;

fig. 7A is a schematic diagram illustrating the display device after switching channels;

fig. 7B is a schematic diagram illustrating a prompt for the display device to start a reservation after switching channels;

fig. 8 is a flowchart illustrating a specific process of the scheduled recording method.

Detailed Description

All other embodiments, which can be derived by a person skilled in the art from the exemplary embodiments shown in the present application without inventive effort, shall fall within the scope of protection of the present application. Moreover, while the disclosure herein has been presented in terms of exemplary one or more examples, it is to be understood that each aspect of the disclosure can be utilized independently and separately from other aspects of the disclosure to provide a complete disclosure.

The terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or device.

The term "module," as used herein, refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the functionality associated with that element.

The term "gesture" as used in this application refers to a user's behavior through a change in hand shape or an action such as hand motion to convey a desired idea, action, purpose, or result.

Fig. 1A is a schematic diagram illustrating an operation scenario between the display device 200 and the control apparatus 100. As shown in fig. 1A, the control apparatus 100 and the display device 200 may communicate with each other in a wired or wireless manner.

Among them, the control apparatus 100 is configured to control the display device 200, which may receive an operation instruction input by a user and convert the operation instruction into an instruction recognizable and responsive by the display device 200, serving as an intermediary for interaction between the user and the display device 200. Such as: the user operates the channel up/down key on the control device 100, and the display device 200 responds to the channel up/down operation.

The control device 100 may be a remote controller 100A, which includes infrared protocol communication or bluetooth protocol communication, and other short-distance communication methods, etc. to control the display apparatus 200 in a wireless or other wired manner. The user may input a user instruction through a key on a remote controller, voice input, control panel input, etc., to control the display apparatus 200. Such as: the user can input a corresponding control command through a volume up/down key, a channel control key, up/down/left/right moving keys, a voice input key, a menu key, a power on/off key, etc. on the remote controller, to implement the function of controlling the display device 200.

The control device 100 may also be an intelligent device, such as a mobile terminal 100B, a tablet computer, a notebook computer, and the like. For example, the display device 200 is controlled using an application program running on the smart device. The application program may provide various controls to a user through an intuitive User Interface (UI) on a screen associated with the smart device through configuration.

For example, the mobile terminal 100B may install a software application with the display device 200 to implement connection communication through a network communication protocol for the purpose of one-to-one control operation and data communication. Such as: the mobile terminal 100B may be caused to establish a control instruction protocol with the display device 200 to implement the functions of the physical keys as arranged in the remote control 100A by operating various function keys or virtual buttons of the user interface provided on the mobile terminal 100B. The audio and video content displayed on the mobile terminal 100B may also be transmitted to the display device 200, so as to implement a synchronous display function.

The display apparatus 200 may be implemented as a television, and may provide an intelligent network television function of a broadcast receiving television function as well as a computer support function. Examples of the display device include a digital television, a web television, a smart television, an Internet Protocol Television (IPTV), and the like.

The display device 200 may be a liquid crystal display, an organic light emitting display, a projection display device. The specific display device type, size, resolution, etc. are not limited.

The display apparatus 200 also performs data communication with the server 300 through various communication means. Here, the display apparatus 200 may be allowed to be communicatively connected through a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 300 may provide various contents and interactions to the display apparatus 200. By way of example, the display device 200 may send and receive information such as: receiving Electronic Program Guide (EPG) data, receiving software program updates, or accessing a remotely stored digital media library. The servers 300 may be a group or groups of servers, and may be one or more types of servers. Other web service content such as video channel casting and advertisement services are provided through the server 300.

Fig. 1B is a block diagram illustrating the configuration of the control device 100. As shown in fig. 1B, the control device 100 includes a controller 110, a memory 120, a communicator 130, a user input interface 140, an output interface 150, and a power supply 160.

The controller 110 includes a Random Access Memory (RAM)111, a Read Only Memory (ROM)112, a processor 113, a communication interface, and a communication bus. The controller 110 is used to control the operation of the control device 100, as well as the internal components of the communication cooperation, external and internal data processing functions.

Illustratively, when an interaction of a user pressing a key disposed on the remote controller 100A or an interaction of touching a touch panel disposed on the remote controller 100A is detected, the controller 110 may control to generate a signal corresponding to the detected interaction and transmit the signal to the display device 200.

And a memory 120 for storing various operation programs, data and applications for driving and controlling the control apparatus 100 under the control of the controller 110. The memory 120 may store various control signal commands input by a user.

The communicator 130 enables communication of control signals and data signals with the display apparatus 200 under the control of the controller 110. Such as: the control apparatus 100 transmits a control signal (e.g., a touch signal or a button signal) to the display device 200 via the communicator 130, and the control apparatus 100 may receive the signal transmitted by the display device 200 via the communicator 130. The communicator 130 may include an infrared signal interface 131 and a radio frequency signal interface 132. For example: when the infrared signal interface is used, the user input instruction needs to be converted into an infrared control signal according to an infrared control protocol, and the infrared control signal is sent to the display device 200 through the infrared sending module. The following steps are repeated: when the rf signal interface is used, a user input command needs to be converted into a digital signal, and then the digital signal is modulated according to the rf control signal modulation protocol and then transmitted to the display device 200 through the rf transmitting terminal.

The user input interface 140 may include at least one of a microphone 141, a touch pad 142, a sensor 143, a key 144, and the like, so that a user can input a user instruction regarding controlling the display apparatus 200 to the control apparatus 100 through voice, touch, gesture, press, and the like.

The output interface 150 outputs a user instruction received by the user input interface 140 to the display apparatus 200, or outputs an image or voice signal received by the display apparatus 200. Here, the output interface 150 may include an LED interface 151, a vibration interface 152 generating vibration, a sound output interface 153 outputting sound, a display 154 outputting an image, and the like. For example, the remote controller 100A may receive an output signal such as audio, video, or data from the output interface 150, and display the output signal in the form of an image on the display 154, in the form of audio on the sound output interface 153, or in the form of vibration on the vibration interface 152.

And a power supply 160 for providing operation power support for each element of the control device 100 under the control of the controller 110. In the form of a battery and associated control circuitry.

A hardware configuration block diagram of the display device 200 is exemplarily illustrated in fig. 1C. As shown in fig. 1C, the display apparatus 200 may further include a tuner demodulator 210, a communicator 220, a detector 230, an external device interface 240, a controller 250, a memory 260, a user interface 265, a video processor 270, a display 275, an audio processor 280, an audio input interface 285, and a power supply 290.

The tuner demodulator 210 receives the broadcast television signal in a wired or wireless manner, may perform modulation and demodulation processing such as amplification, mixing, and resonance, and is configured to demodulate, from a plurality of wireless or wired broadcast television signals, an audio/video signal carried in a frequency of a television channel selected by a user, and additional information (e.g., EPG data).

The tuner demodulator 210 is responsive to the user selected frequency of the television channel and the television signal carried by the frequency, as selected by the user and controlled by the controller 250.

The tuner demodulator 210 can receive a television signal in various ways according to the broadcasting system of the television signal, such as: terrestrial broadcasting, cable broadcasting, satellite broadcasting, internet broadcasting, or the like; and according to different modulation types, a digital modulation mode or an analog modulation mode can be adopted; and can demodulate the analog signal and the digital signal according to the different kinds of the received television signals.

In other exemplary embodiments, the tuning demodulator 210 may also be in an external device, such as an external set-top box. In this way, the set-top box outputs a television signal after modulation and demodulation, and inputs the television signal into the display apparatus 200 through the external device interface 240.

The communicator 220 is a component for communicating with an external device or an external server according to various communication protocol types. For example, the display apparatus 200 may transmit content data to an external apparatus connected via the communicator 220, or browse and download content data from an external apparatus connected via the communicator 220. The communicator 220 may include a network communication protocol module or a near field communication protocol module, such as a WIFI module 221, a bluetooth communication protocol module 222, and a wired ethernet communication protocol module 223, so that the communicator 220 may receive a control signal of the control device 100 according to the control of the controller 250 and implement the control signal as a WIFI signal, a bluetooth signal, a radio frequency signal, and the like.

The detector 230 is a component of the display apparatus 200 for collecting signals of an external environment or interaction with the outside. The detector 230 may include an image collector 231, such as a camera, a video camera, etc., which may be used to collect external environment scenes to adaptively change the display parameters of the display device 200; and the function of acquiring the attribute of the user or interacting gestures with the user so as to realize the interaction between the display equipment and the user. A light receiver 232 may also be included to collect ambient light intensity to adapt to changes in display parameters of the display device 200, etc.

In some other exemplary embodiments, the detector 230 may further include a temperature sensor, such as by sensing an ambient temperature, and the display device 200 may adaptively adjust a display color temperature of the image. For example, when the temperature is higher, the display apparatus 200 may be adjusted to display a color temperature of an image that is cooler; when the temperature is lower, the display device 200 may be adjusted to display a warmer color temperature of the image.

In some other exemplary embodiments, the detector 230, which may further include a sound collector, such as a microphone, may be configured to receive a sound of a user, such as a voice signal of a control instruction of the user to control the display device 200; alternatively, ambient sounds may be collected that identify the type of ambient scene, enabling the display device 200 to adapt to ambient noise.

The external device interface 240 is a component for providing the controller 210 to control data transmission between the display apparatus 200 and an external apparatus. The external device interface 240 may be connected to an external apparatus such as a set-top box, a game device, a notebook computer, etc. in a wired/wireless manner, and may receive data such as a video signal (e.g., moving image), an audio signal (e.g., music), additional information (e.g., EPG), etc. of the external apparatus.

The external device interface 240 may include: a High Definition Multimedia Interface (HDMI) terminal 241, a Composite Video Blanking Sync (CVBS) terminal 242, an analog or digital Component terminal 243, a Universal Serial Bus (USB) terminal 244, a Component terminal (not shown), a red, green, blue (RGB) terminal (not shown), and the like.

The controller 250 controls the operation of the display device 200 and responds to the operation of the user by running various software control programs (such as an operating system and various application programs) stored on the memory 260.

As shown in fig. 1C, the controller 250 includes a Random Access Memory (RAM)251, a Read Only Memory (ROM)252, a graphics processor 253, a CPU processor 254, a communication interface 255, and a communication bus 256. The RAM251, the ROM252, the graphic processor 253, and the CPU processor 254 are connected to each other through a communication bus 256 through a communication interface 255.

The ROM252 stores various system boot instructions. When the display apparatus 200 starts power-on upon receiving the power-on signal, the CPU processor 254 executes a system boot instruction in the ROM252, copies the operating system stored in the memory 260 to the RAM251, and starts running the boot operating system. After the start of the operating system is completed, the CPU processor 254 copies the various application programs in the memory 260 to the RAM251 and then starts running and starting the various application programs.

A graphic processor 253 for generating screen images of various graphic objects such as icons, images, and operation menus. The graphic processor 253 may include an operator for performing an operation by receiving various interactive instructions input by a user, and further displaying various objects according to display attributes; and a renderer for generating various objects based on the operator and displaying the rendered result on the display 275.

A CPU processor 254 for executing operating system and application program instructions stored in memory 260. And according to the received user input instruction, processing of various application programs, data and contents is executed so as to finally display and play various audio-video contents.

In some example embodiments, the CPU processor 254 may comprise a plurality of processors. The plurality of processors may include one main processor and a plurality of or one sub-processor. A main processor for performing some initialization operations of the display apparatus 200 in the display apparatus preload mode and/or operations of displaying a screen in the normal mode. A plurality of or one sub-processor for performing an operation in a state of a standby mode or the like of the display apparatus.

The communication interface 255 may include a first interface to an nth interface. These interfaces may be network interfaces that are connected to external devices via a network.

The controller 250 may control the overall operation of the display apparatus 200. For example: in response to receiving a user input command for selecting a GUI object displayed on the display 275, the controller 250 may perform an operation related to the object selected by the user input command.

Where the object may be any one of the selectable objects, such as a hyperlink or an icon. The operation related to the selected object is, for example, an operation of displaying a link to a hyperlink page, document, image, or the like, or an operation of executing a program corresponding to an icon. The user input command for selecting the GUI object may be a command input through various input means (e.g., a mouse, a keyboard, a touch panel, etc.) connected to the display apparatus 200 or a voice command corresponding to a user uttering voice.

A memory 260 for storing various types of data, software programs, or applications for driving and controlling the operation of the display device 200. The memory 260 may include volatile and/or nonvolatile memory. And the term "memory" includes the memory 260, the RAM251 and the ROM252 of the controller 250, or a memory card in the display device 200.

In some embodiments, the memory 260 is specifically used for storing an operating program for driving the controller 250 of the display device 200; storing various application programs built in the display apparatus 200 and downloaded by a user from an external apparatus; data such as visual effect images for configuring various GUIs provided by the display 275, various objects related to the GUIs, and selectors for selecting GUI objects are stored.

In some embodiments, the memory 260 is specifically configured to store drivers and related data for the tuner demodulator 210, the communicator 220, the detector 230, the external device interface 240, the video processor 270, the display 275, the audio processor 280, and the like, external data (e.g., audio-visual data) received from the external device interface, or user data (e.g., key information, voice information, touch information, and the like) received from the user interface.

In some embodiments, memory 260 specifically stores software and/or programs representing an Operating System (OS), which may include, for example: a kernel, middleware, an Application Programming Interface (API), and/or an application program. Illustratively, the kernel may control or manage system resources, as well as functions implemented by other programs (e.g., the middleware, APIs, or applications); at the same time, the kernel may provide an interface to allow middleware, APIs, or applications to access the controller to enable control or management of system resources.

A block diagram of the architectural configuration of the operating system in the memory of the display device 200 is illustrated in fig. 1D. The operating system architecture comprises an application layer, a middleware layer and a kernel layer from top to bottom.

The application layer, the application programs built in the system and the non-system-level application programs belong to the application layer and are responsible for direct interaction with users. The application layer may include a plurality of applications such as NETFLIX applications, setup applications, media center applications, and the like. These applications may be implemented as Web applications that execute based on a WebKit engine, and in particular may be developed and executed based on HTML, Cascading Style Sheets (CSS), and JavaScript.

Here, HTML, which is called HyperText Markup Language (HyperText Markup Language), is a standard Markup Language for creating web pages, and describes the web pages by Markup tags, where the HTML tags are used to describe characters, graphics, animation, sound, tables, links, etc., and a browser reads an HTML document, interprets the content of the tags in the document, and displays the content in the form of web pages.

CSS, known as Cascading Style Sheets (Cascading Style Sheets), is a computer language used to represent the Style of HTML documents, and may be used to define Style structures, such as fonts, colors, locations, etc. The CSS style can be directly stored in the HTML webpage or a separate style file, so that the style in the webpage can be controlled.

JavaScript, a language applied to Web page programming, can be inserted into an HTML page and interpreted and executed by a browser. The interaction logic of the Web application is realized by JavaScript. The JavaScript can package a JavaScript extension interface through a browser, realize the communication with the kernel layer,

the middleware layer may provide some standardized interfaces to support the operation of various environments and systems. For example, the middleware layer may be implemented as multimedia and hypermedia information coding experts group (MHEG) middleware related to data broadcasting, DLNA middleware which is middleware related to communication with an external device, middleware which provides a browser environment in which each application program in the display device operates, and the like.

The kernel layer provides core system services, such as: file management, memory management, process management, network management, system security authority management and the like. The kernel layer may be implemented as a kernel based on various operating systems, for example, a kernel based on the Linux operating system.

The kernel layer also provides communication between system software and hardware, and provides device driver services for various hardware, such as: provide display driver for the display, provide camera driver for the camera, provide button driver for the remote controller, provide wiFi driver for the WIFI module, provide audio driver for audio output interface, provide power management drive for Power Management (PM) module etc..

A user interface 265 receives various user interactions. Specifically, it is used to transmit an input signal of a user to the controller 250 or transmit an output signal from the controller 250 to the user. For example, the remote controller 100A may transmit an input signal, such as a power switch signal, a channel selection signal, a volume adjustment signal, etc., input by the user to the user interface 265, and then the input signal is transferred to the controller 250 through the user interface 265; alternatively, the remote controller 100A may receive an output signal such as audio, video, or data output from the user interface 265 via the controller 250, and display the received output signal or output the received output signal in audio or vibration form.

In some embodiments, a user may enter user commands on a Graphical User Interface (GUI) displayed on the display 275, and the user interface 265 receives the user input commands through the GUI. Specifically, the user interface 265 may receive user input commands for controlling the position of a selector in the GUI to select different objects or items.

Alternatively, the user may input a user command by inputting a specific sound or gesture, and the user interface 265 receives the user input command by recognizing the sound or gesture through the sensor.

The video processor 270 is configured to receive an external video signal, and perform video data processing such as decompression, decoding, scaling, noise reduction, frame rate conversion, resolution conversion, and image synthesis according to a standard codec protocol of the input signal, so as to obtain a video signal that is directly displayed or played on the display 275.

Illustratively, the video processor 270 includes a demultiplexing module, a video decoding module, an image synthesizing module, a frame rate conversion module, a display formatting module, and the like.

The demultiplexing module is configured to demultiplex an input audio/video data stream, where, for example, an input MPEG-2 stream (based on a compression standard of a digital storage media moving image and voice), the demultiplexing module demultiplexes the input audio/video data stream into a video signal and an audio signal.

And the video decoding module is used for processing the video signal after demultiplexing, including decoding, scaling and the like.

And the image synthesis module is used for carrying out superposition mixing processing on the GUI signal input by the user or generated by the user and the video image after the zooming processing by the graphic generator so as to generate an image signal for display.

The frame rate conversion module is configured to convert a frame rate of an input video, for example, convert a frame rate of an input 60Hz video into a frame rate of 120Hz or 240Hz, where a common format is implemented by using, for example, an interpolation frame method.

And a display formatting module for converting the signal output by the frame rate conversion module into a signal conforming to a display format of a display, such as converting the format of the signal output by the frame rate conversion module to output an RGB data signal.

And a display 275 for receiving the image signal from the output of the video processor 270 and displaying video, images and menu manipulation interfaces. For example, the display may display video from a broadcast signal received by the tuner demodulator 210, may display video input from the communicator 220 or the external device interface 240, and may display an image stored in the memory 260. The display 275, while displaying a user manipulation interface UI generated in the display apparatus 200 and used to control the display apparatus 200.

And, the display 275 may include a display screen assembly for presenting a picture and a driving assembly for driving the display of an image. Alternatively, a projection device and projection screen may be included, provided display 275 is a projection display.

The audio processor 280 is configured to receive an external audio signal, decompress and decode the received audio signal according to a standard codec protocol of the input signal, and perform audio data processing such as noise reduction, digital-to-analog conversion, and amplification processing to obtain an audio signal that can be played by the speaker 286.

Illustratively, audio processor 280 may support various audio formats. Such as MPEG-2, MPEG-4, Advanced Audio Coding (AAC), high efficiency AAC (HE-AAC), and the like.

Audio output interface 285 receives audio signals from the output of audio processor 280. For example, the audio output interface may output audio in a broadcast signal received via the tuner demodulator 210, may output audio input via the communicator 220 or the external device interface 240, and may output audio stored in the memory 260. The audio output interface 285 may include a speaker 286, or an external audio output terminal 287, such as an earphone output terminal, that outputs to a generating device of an external device.

In other exemplary embodiments, video processor 270 may comprise one or more chips. Audio processor 280 may also comprise one or more chips.

And, in other exemplary embodiments, the video processor 270 and the audio processor 280 may be separate chips or may be integrated with the controller 250 in one or more chips.

And a power supply 290 for supplying power supply support to the display apparatus 200 from the power input from the external power source under the control of the controller 250. The power supply 290 may be a built-in power supply circuit installed inside the display apparatus 200 or may be a power supply installed outside the display apparatus 200.

Fig. 2A to 2D are diagrams illustrating a GUI for a set of PVR recording settings provided by the display apparatus 200.

As shown in fig. 2A, the display device may provide a GUI to the display, the GUI being a navigation interface, the upper right corner of the interface displaying the current local time, i.e. the system time of the display device, e.g. "9: 50 wednesday, 7 month, 1 day", the middle part of the interface including a list of program playing times in channels, e.g. program 1 to program 14 played on channel 1 to channel 5, respectively, and the duration of the program playing.

The interface also comprises a time axis, the position of the time axis corresponds to the current local time, and programs on the left of the time axis are broadcasted programs which can not be recorded in a reserved mode; the program on the right side of the time axis is an unplayed program and can be recorded in a scheduled mode, and a user can select a program which is expected to be recorded in the interface through a remote controller. For example, when the user selects to record the program 11, the selection focus can be moved to the position of the program 11 by the remote controller, and then the related introduction corresponding to the program 11 and the channel (i.e., channel 4) corresponding to the program 11 are displayed on the upper portion of the interface. When the user clicks the confirmation button of the remote control, the GUI shown in FIG. 2B is presented.

In fig. 2B, a dialog window appears on the basis of fig. 2A, in which the program 11 and its playing time are displayed, and a plurality of operation options such as "PVR", "reminder", and "delete" are displayed in the window, and after the user selects "PVR", the GUI shown in fig. 2C is presented.

In fig. 2C, a new dialog window appears based on fig. 2A, in which a program table recording menu is displayed, in which the program 11 and its playing time are displayed, and a plurality of recording options are displayed, including a recording mode, a start time, an end time, and a repeat option. The user may select a desired recording mode (e.g., "time"), a start time (e.g., "11: 00"), an end time (e.g., "12: 00"), and a repeat option (e.g., "daily") in the menu for the selected program, the repeat option representing a scheduled recording schedule period that may include daily, once-only, monday-friday, saturday-sunday, weekly, and so forth. Clicking the ok button when the user has entered the above option may save the reservation record and then return to the page shown in fig. 2A.

In the navigation interface shown in fig. 2A, when the user clicks the "program table" button at the bottom through the remote controller, the GUI shown in fig. 2D may be presented. In fig. 2D, a program table menu is displayed in which a list of scheduled recording programs is displayed, in which a channel number, a program number, a scheduled recording start time, and a repeat pattern of each scheduled recording program are displayed, and the user can return to the GUI shown in fig. 2A by clicking a return button of the remote controller.

The above exemplary setting process of program scheduled recording is displayed.

In some embodiments, the Time of the display device generally relates to two times, one is Network Time, which is obtained from an NTP (Network Time Protocol) server; the other is the code stream time, which is the time taken from the code stream TDT (time and date) table and added when the code stream is made. The network time consistency is strong and more accurate, but the code stream time is not necessarily accurate, the code stream time of the same channel is consistent, and the code stream time of different channels may be different.

In some laggard areas, the code stream time of different channels of a DTV (Digital Television) has a deviation from the network time, some channels have a code stream time faster than the network time, and some channels have a code stream time slower than the network time.

If the network time is the system time of the television, the situation that the program is started or not started because the code stream time of the current channel is inconsistent with the system time when the reservation starting time is up may occur. For example, if the code stream time of channel a is 10min faster than the network time, if channel a 11 is reserved: 00 and then switches to channel B to watch the program. Then the system time that should have been local arrives 11: when 00, the user is prompted to record the program of the channel a, but since the code stream time of the channel a is 10min faster than the network time (i.e., the system time), the local system time is up to 11:00, channel a is actually 10:50, the program has already started playing, the program has already played for 10min, and recording is missed.

If the code stream time is taken as the system time, if the user keeps reserving the recorded channel all the time, the channel is not switched, and the reservation starting time can be ensured to be accurate. However, if the channel B is switched, assuming that the channel B is 20min slower than the code stream time of the channel a, when it is determined that the reservation start time 11 is currently reached based on the channel B: 00, the code stream time of the actual channel A is 11: 20, the reserved program has elapsed 20 min. And thus, the program cannot be recorded on time.

The concrete solution is shown in the following embodiment.

In a first embodiment, the present application provides a display device, which can enable a recorded channel to just start playing a recorded program when a PVR starts recording according to a system time corresponding to a reserved start time when the PVR starts recording, so as to avoid a recording time deviation problem caused by a difference between a code stream time and a network time.

Specifically, some components in the display device may specifically perform the following operations:

and the display is used for displaying the playing picture.

And the tuning demodulator is used for receiving and decoding the broadcast program carried by the digital broadcast signal.

A user interface for receiving user input.

A controller coupled to the tuning demodulator, the controller performing the operational steps as shown in FIG. 3:

step 301, receiving broadcast program reserved recording information input by a user; the reserved recording information at least comprises a reserved starting time.

The process of user input here is illustrated in fig. 2A-2D. The broadcast program scheduled recording information input by the user at least comprises: the start time is reserved. The reserved starting time is set based on the code stream time of the digital broadcast signal corresponding to the broadcast program to be recorded currently, and is the code stream time of the reserved and recorded broadcast program when the channel of the digital broadcast signal is played. For example, if the digital broadcast signal of the current broadcast program is channel 4, the code stream time (e.g., 11:00) at which the broadcast program corresponding to channel 4 starts to be played is acquired as the reservation start time.

Step 302, obtaining a current code stream time corresponding to the digital broadcast signal and a current network time corresponding to the system.

In this embodiment, the current code stream time obtained corresponding to the digital broadcast signal is the current code stream time of the channel where the broadcast program is scheduled to be recorded, for example, 10: 00. As shown in fig. 4A, if a digital broadcast signal to which a reserved broadcast program belongs is currently being played in the display interface, a channel number, for example, channel 4, is displayed in the upper left corner of the display interface. Assuming that the current channel 4 is playing the program 10, the display interface is a playing picture of the program 10, and the upper right code stream time of the playing picture may display the code stream time of the digital broadcast signal of the current channel 4, for example, 10: 00. The code stream time of the channel can be obtained from the code stream TDT table corresponding to the channel 4.

The system time currently displayed locally on the display device is determined based on the network time, as shown in fig. 4B, and the system time is displayed in the upper right corner, e.g., 9:50, when the controller enters a system navigation interface (e.g., a tv home interface).

Step 303, calculating a time difference between the current code stream time and the current network time.

Step 304, based on the reservation starting time and the time difference value, correcting the reservation starting time, and storing reservation recording information according to the corrected reservation starting time.

Specifically, a time difference value obtained by subtracting the current code stream time from the current network time may be calculated; then, the time sum of the time difference and the reservation starting time is calculated, and the time sum is determined as the corrected reservation starting time.

For example, a time difference obtained by subtracting the current code stream time from the current network time is calculated, that is, the time difference is the current network time — the current code stream time is 9:50-10: 00-10 min. The time difference is shown in fig. 5, where the system time is 10min slower than the code stream time of the recording channel. The time interpolation of any point of the system time and the code stream time of the channel is the same, so the time difference t1 between the current system time and the code stream time is calculated to be the same as the time difference t2 between the code stream time of the reserved starting time and the system time. The time difference between the system time and the code stream time of different channels will be different.

The corrected reservation start time + time difference is 11:00+ (-10min) 10: 50. The corrected reservation starting time is used as the actual starting time of the reserved recording. Since the corrected reservation starting time is corrected based on the deviation between the code stream time and the network time corresponding to the channel, the corrected reservation starting time may determine the local network time (e.g., 10:50) corresponding to the reservation starting time (e.g., 11:00), as shown in fig. 5. Furthermore, the reservation end time may be determined based on the reservation start time based on a recording time length input by the user, and the actual reservation end time may be determined based on the recording time length and the corrected reservation start time and the accurate actual reservation start time, for example, if the reservation end time is 12:00, the recording time length is 12:00-11: 00-1: 00, and the local actual reservation end time is 10:50+1: 00-11: 50.

In one example, since periodic reservation of a PVR is generally based on UTC (universal time Coordinated) time when implemented, a reservation list is stored using a Unix timestamp, so that time deviations caused by different time zones and winter and summer time can be avoided.

Therefore, the time difference value obtained by subtracting the current code stream time from the current network time is calculated, and the current code stream time can be further converted into corresponding second UTC time by converting the current network time into corresponding first UTC time; and calculating a UTC time difference value between the first UTC time and the second UTC time, and determining the UTC time difference value as the time difference value.

The UTC time corresponding to the code stream time can be obtained from a code stream TDT table, and a user can check the UTC time through a television infobar.

Calculating a time sum of the time difference and the reservation start time may be further performed by converting the reservation start time into a corresponding third UTC time; and calculating the UTC time sum corresponding to the difference value between the third UTC time and the UTC time, converting the UTC time sum into network time, namely the corrected reservation starting time, and storing reservation recording information according to the corrected reservation starting time.

After the corrected appointment start time is obtained, the controller may cause the display to display the appointment start time on an appointment recording interface so that the appointment start time viewed by the user is consistent with the appointment start time set by the user; the actual start time recorded in the reservation list of the controller is the corrected reservation start time (i.e., the sum of the UTC time), so that reservation judgment is performed based on the corrected reservation start time, thereby making reservation judgment more accurate and avoiding deviation caused by different time zones and winter and summer time.

And recording the broadcast program currently played by the target channel when the display equipment displays the corrected reservation starting time. Therefore, when the recording is started based on the corrected reservation starting time, the recorded channel just starts to play the recorded program, and the problem of recording time deviation caused by the fact that the code stream time is different from the network time is solved.

In one example, the controller records a scheduled recording of a broadcast program including at least: a channel identifier corresponding to the digital broadcast signal, a program identifier corresponding to a broadcast program scheduled to be recorded, a reservation period, a recording duration, a reservation start time, and a corrected reservation start time, where the channel identifier, the program identifier, the reservation period, and the reservation start time are, for example, channel 4, program 11, repeat every day, 11:00 in fig. 2D; the recording duration is calculated according to the appointment starting time and the appointment ending time; the corrected reservation start time is determined by the above steps 301-304, as 10:50, and the corrected reservation start time may also record the corresponding UTC time.

In one example, based on the step 304 of correcting the scheduled start time and storing the scheduled recording information according to the corrected scheduled start time, the controller may further receive an instruction from the user to view the scheduled recording, and display the scheduled recording containing the scheduled recording information on the display; wherein the reserved recording information displays the reserved starting time. The reservation start time referred to herein is a reservation start time set by the user before the correction, and as shown in fig. 2D, the reservation start time is 11:00, but the corrected reservation start time is not displayed in the interface, so that the user is unaware of the operation of correcting the reservation start time.

The controller takes 'only once' as an example according to the reservation period, and when the corrected reservation starting time is reached, because the user does not switch channels, the currently played channel is the channel reserved and recorded by the user. And because the corrected reservation starting time eliminates the difference between the code stream time and the network time of the channel, when the corrected reservation starting time arrives, the reserved recording program which is just played by the current channel is recorded on the current channel, so that the current program can be recorded on the current channel based on the recording time length.

In a second embodiment, the present application provides a display device, which can enable a recorded channel to just start playing a recorded program when a PVR starts recording according to a system time corresponding to a reserved start time when the PVR starts recording, so as to avoid a recording time deviation problem caused by a difference between a code stream time and a network time.

and the display is used for displaying the playing picture.

A user interface for receiving user input.

A controller coupled to the tuning demodulator, the controller performing the operational steps as shown in FIG. 6:

step 601, receiving first broadcast program scheduled recording information in a first channel input by a user; the reserved recording information at least comprises reserved starting time;

step 602, obtaining current code stream time corresponding to the digital broadcast signal and current network time corresponding to the system;

step 603, calculating a time difference value between the current code stream time and the current network time;

step 604, correcting the reserved starting time based on the reserved starting time and the time difference value, and storing reserved recording information according to the corrected reserved starting time.

The reserved recording information at least comprises: the channel identifier of the first channel, the program identifier of the first broadcast program, the reservation period, the recording duration, the reservation starting time and the corrected reservation starting time.

Step 605, receiving an instruction for switching to another channel or another application, which is input by a user, and displaying a broadcast program of the other channel or a service provided by the other application in a display; when the current network time is determined to reach the corrected reservation starting time, displaying prompt information for indicating whether to start reservation recording;

after receiving an instruction of switching to other channels or other applications, which is input by a user, a controller displays broadcast programs of the other channels or services provided by the other applications in a display; for example, when the user switches the currently viewing channel from channel 4 to channel 5, the display interface displays the playing screen of channel 5. As shown in fig. 7A, the top left corner of the display interface displays the identifier of channel 5, and the top right corner displays the current codestream time of channel 5, e.g., 10: 58.

When the network time of the current system reaches the corrected reservation starting time, the current watching channel is not the channel reserved for recording, so that the prompt information of the reserved recording can be displayed in the current interface, and a user is inquired whether to jump to the channel corresponding to the channel identifier for recording. A reminder message "does program 11 of channel 4 reach the reservation start time and switch channels to record? And an "ok" button and a "cancel" button, the user can switch to channel 4 for recording by clicking the "ok" button, and can also cancel the current scheduled recording operation by clicking the "cancel" button.

The controller may prompt the user to record when a scheduled start time of a first broadcast program of a first channel is reached after the user switches channels.

Because the code stream time of different channels may be different, when the user switches from the first judgment to another channel, the code stream time displayed on the playing screen is the code stream time corresponding to the current channel, and the time may be different from the code stream time of the first channel, for example, the code stream time displayed on the channel 5 shown in fig. 7A is 10:58, and the code stream time displayed on the channel 4 at this time should be 11: 00. therefore, the user cannot judge whether the reservation starting time is reached based on the currently displayed code stream time of the channel.

The method and the device can convert the reservation starting time into the corrected reservation starting time represented by the network time, so that no matter which channel a user watches currently, the controller judges whether to start reservation or not based on the corrected reservation starting time, and the problem of recording time difference caused by different code stream times of different channels can be avoided.

When it is determined that the current network time reaches the modified reservation starting time based on step 605, and when a prompt indicating whether to start reserved recording is displayed, the controller may further receive an instruction input by the user to start recording, for example, if the user triggers the "confirm" button in fig. 7A, the controller may switch from the other channel or the other application to the first channel and start recording the first broadcast program; wherein the reservation starting time is displayed in the channel information of the first channel.

If the cancel instruction input by the user is kept at the current channel, waiting for the next reservation period, if the reservation period is daily, waiting until the actual starting time of the next day, executing the judgment, and if the reservation period is only once, deleting the reserved recording record stored locally.

In a third embodiment, a specific flowchart of a method for executing a scheduled recording by a controller provided in a display device shown in fig. 8 specifically includes the following steps:

step 801, acquiring a reservation starting time t1, a reservation ending time t2, a channel identifier, a program identifier and a reservation period set by a user during reservation recording, and calculating a recording time length according to the reservation starting time t1 and the reservation ending time t 2;

step 802, acquiring current code stream time t3 of a reserved recording channel, and storing local system time t 4;

step 803, calculating the time difference p of the UTC time of the system time t4 minus the UTC time of the current code stream time t 3;

step 804, adding the UTC time of the reserved starting time T1 to the time difference to obtain the UTC time T of the actual starting time; the time starting time is the corrected reservation starting time.

Step 805, generate the scheduled recording record, including the channel identifier, the program identifier, the scheduled period, the scheduled start time T1 and the UTC time T of the actual start time.

Step 806, when the UTC time T of the actual start time of the reservation period is reached, determining whether the channel identifier and the program identifier of the current channel are the same as the channel identifier and the program identifier in the reservation record, if yes, turning to step 807; if not, go to step 808;

step 807, recording is started, and recording is finished when the recording time is up;

step 808, prompting a user to reserve recording on a display interface, switching channels according to an instruction channel sent by the user to record, and if so, turning to step 809; if not, go to step 810;

step 809, switching to a channel reserved for recording, ending recording when the recording time is up, waiting for the next reserved period, and turning to step 806;

step 810, keep on the current channel, wait for the next reservation period, go to step 806.

Such as user settings 2004/07/0111: 00-12: 00, recording duration is 3600s, obtaining a time zone and daylight saving time of a user according to a TOT table of a code stream, if the time zone is an east eight zone and the time is not daylight saving, starting time corresponds to a 0 time zone: 2004/07/013: 00, converting the reservation starting time T1 into the UCT time T as follows: 1088650800.

the current network time 2004/07/019 can be reached using the method provided by the android system: the UTC time systme in the 0 time zone of 50 is: 1088646600. the network time uses the same time zone offset to obtain a current system time of 2004/07/019: 50. taking current code stream time 2004/07/0110 from code stream TDT table: 00 is 1088647200 corresponding to UTC time brodcasttime of 0 time zone, then:

the time difference p is the UTC time of the current network time-the UTC time of the current code stream time is-600.

Indicating that the code stream time is 10min faster than the system time.

Since the code stream time is 10min faster, the actual start should actually be 10min earlier than the reservation start time, and the actual start in the system time should actually be 2004/07/0110: 50, the corresponding 0 time zone UTC time T should be changed to 1088650200.

Storing reservation records including channel identification, program identification, reservation start time, modified reservation start time T, recording duration, and reservation period, such as channel 4, program 11, 2004/07/0111: 00. the start time is 1088650200, the duration is 3600s, and the reservation period is only once.

After the appointment, the user views the appointment record in the schedule, the displayed appointment time is still the local time 2004/07/0111: 00-12: 00.

after switching channels or switching applications, as shown in fig. 7A, assuming that channel 5 is currently viewed, the codestream time for channel 5 is 10: 58. The corresponding network time of the system reaches 2004/07/0110: 50(UTC time 1088650200), pop up the reservation prompt and let the user select whether to jump to the reserved channel to start recording by clicking the "ok" button or the "cancel" button. If the user selects the "ok" button, a zapping operation is performed, zaps to channel 4 and then starts recording. When switching to channel 4, as shown in fig. 7B, the code stream time displayed in the infobar of display interface display frequency channel 4 is exactly 11:00, starting to record the program 11 after the picture of the currently played program 11, wherein the recording time is 3600 s. If the user selects the "cancel" button, it remains on the current channel, i.e., channel 5, waiting for the next scheduled recording period, and if no next scheduled recording period is available, the scheduled recording record is deleted.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include such modifications and variations.

Claims

1. A display device, comprising:

a display;

a user interface for receiving user input;

a controller configured to perform:

2. A display device, comprising:

a display;

a user interface for receiving user input;

a controller configured to perform:

3. A display device, comprising:

a display;

a user interface for receiving user input;

a controller configured to perform:

4. A display device, comprising:

a display;

a user interface for receiving user input;

a controller configured to perform:

5. The display device according to claim 3 or 4, wherein the storing the scheduled recording information according to the corrected scheduled start time comprises:

storing the reserved recording information, wherein the reserved recording information comprises: the channel identifier of the first channel, the program identifier of the first broadcast program, the reservation period, the recording duration, the reservation starting time and the corrected reservation starting time.

6. The display device according to any one of claims 1 to 4,

the calculating the time difference between the current code stream time and the current network time includes:

converting the current network time into corresponding first world coordinated time UTC time, and converting the current code stream time into corresponding second UTC time;

calculating a UTC time difference value between the first UTC time and the second UTC time, and determining the UTC time difference value as the time difference value;

the correcting the reservation starting time based on the reservation starting time and the time difference comprises:

converting the appointment starting time into a corresponding third UTC time;

and calculating the UTC time sum corresponding to the difference value between the third UTC time and the UTC time, converting the UTC time sum into target network time, and taking the target network time as the corrected reservation starting time.

7. A method for determining a reservation start time, the method comprising:

8. A method for determining a reservation start time, the method comprising:

9. A method for determining a reservation start time, the method comprising:

10. A method for determining a reservation start time, the method comprising:

11. The method of claim 9 or 10, wherein storing the scheduled recording information according to the modified scheduled start time comprises:

12. The method according to any of the claims 7 to 10,

converting the appointment starting time into a corresponding third UTC time;