CN116456134A - Media streaming device and media streaming method - Google Patents

Media streaming device and media streaming method Download PDF

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Publication number
CN116456134A
CN116456134A CN202210010972.3A CN202210010972A CN116456134A CN 116456134 A CN116456134 A CN 116456134A CN 202210010972 A CN202210010972 A CN 202210010972A CN 116456134 A CN116456134 A CN 116456134A
Authority
CN
China
Prior art keywords
media
streaming
processor
power
supply voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210010972.3A
Other languages
Chinese (zh)
Inventor
赖照民
叶家齐
谢杰隆
林志峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Realtek Semiconductor Corp
Original Assignee
Realtek Semiconductor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Realtek Semiconductor Corp filed Critical Realtek Semiconductor Corp
Priority to CN202210010972.3A priority Critical patent/CN116456134A/en
Publication of CN116456134A publication Critical patent/CN116456134A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4436—Power management, e.g. shutting down unused components of the receiver
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Power Sources (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

A media streaming method and a media streaming device, wherein the media streaming device comprises a power manager, a streaming processor and a voltage detector. The power manager is used for receiving a power signal from the media playing device to supply power to the streaming processor. The streaming processor provides a media stream to the media playing device for playing. The voltage detector is electrically coupled to the streaming processor and obtains at least a portion of the supply current to the streaming processor. The stream processor is used for judging whether the power supply voltage is stable. When the supply voltage is kept stable, the stream processor operates in a first mode to provide a media stream. When the power supply voltage is unstable, the streaming processor operates in the second mode to provide the media streaming, and the power consumption of the streaming processor when operating in the second mode is lower than that of the streaming processor when operating in the first mode.

Description

Media streaming device and media streaming method
Technical Field
The disclosure relates to a media streaming technology, and more particularly to a media streaming device coupled to a media playing device for providing a media stream and a related media streaming method.
Background
In recent years, due to the vigorous development of network streaming technology, a "media streaming device" such as an over-the-top set-top box (OTT STB) or a television stick (TV stick) becomes a new mainstream of a home video and audio device. Through the video streaming mode, a user can easily watch various program channels through a network. In order to facilitate the use, users often plug the media streaming device directly into the television, and drive the media streaming device by the power supply of the television. However, when the media streaming device is running, the internal components may have high power consumption instantaneously, and a large current is required for power supply, otherwise, an abnormality or an error may occur. Therefore, how to design a new media streaming device and streaming method thereof is an important issue in the industry.
Disclosure of Invention
An embodiment of the disclosure is a media streaming device including a power manager, a streaming processor, and a voltage detector. The power manager is used for receiving a power signal from the media playing device. The power signal includes a supply current and a supply voltage. The streaming processor is electrically connected to the power manager, and is configured to receive a power signal and provide a media stream to the media playing device for playing. The voltage detector is electrically connected to the streaming processor for obtaining at least a portion of the power supply current to generate a detection signal to the streaming processor, and the streaming processor is used for determining whether the power supply voltage is stable. When the supply voltage is kept stable, the stream processor operates in a first mode to provide a media stream. When the power supply voltage is unstable, the streaming processor operates in the second mode to provide the media streaming, and the power consumption of the streaming processor when operating in the second mode is lower than that of the streaming processor when operating in the first mode.
Another embodiment of the present disclosure is a media streaming method, comprising the steps of: receiving a power signal from a media playing device through a power manager of the media streaming device, wherein the power signal comprises a power supply current and a power supply voltage; a streaming processor for driving the media streaming device according to the power signal; when the streaming processor is started, judging whether the power supply voltage is stable or not through a voltage detector of the media streaming device; when the power supply voltage is kept stable, controlling the streaming processor to operate in a first mode to provide a media streaming; and when the power supply voltage is unstable, controlling the streaming processor to operate in a second mode to provide the media streaming, wherein the power consumption of the streaming processor when operating in the second mode is lower than that of the streaming processor when operating in the first mode.
Another embodiment of the present disclosure is a media streaming device including a power manager, a streaming processor, and a voltage detector. The power manager is used for receiving a power signal from the media playing device. The power signal comprises a supply voltage. The streaming processor is electrically connected to the power manager, and is configured to receive a power signal and provide a media stream to the media playing device for playing. The voltage detector is electrically coupled to the streaming processor and is used for detecting the power supply voltage received by the power supply manager so as to generate a detection signal to the streaming processor. The stream processor is used for judging whether the power supply voltage is stable. When the supply voltage is kept stable, the stream processor operates in a first mode to provide a media stream. When the power supply voltage is unstable, the streaming processor operates in the second mode to provide the media streaming, and the power consumption of the streaming processor when operating in the second mode is lower than that of the streaming processor when operating in the first mode.
Therefore, the media streaming device can detect the power supply capability of the media playing device and selectively control the streaming processor to operate in different modes, so that the media streaming device can be ensured to operate normally with any specification of media playing device, and no abnormality or damage occurs.
Drawings
Fig. 1 is a schematic diagram of a media streaming device according to some embodiments of the disclosure.
Fig. 2 is a flow chart of a media streaming method according to some embodiments of the disclosure.
Symbol description
100: media streaming device
200: media playing device
110: power supply manager
120: streaming processor
130: voltage detector
131: detection switch
132: detection resistor
140: power converter
150: system-on-a-chip
PA: USB port
PB: multimedia port
P1: USB port
P2: multimedia port
S201-S205: step (a)
Detailed Description
In the following description, numerous practical details of the embodiments of the invention are set forth in the following description, taken in conjunction with the accompanying drawings. However, it should be understood that these practical details are not to be taken as limiting the invention. That is, in some embodiments of the invention, these practical details are unnecessary. Furthermore, for the sake of simplicity of the drawing, some of the existing conventional structures and elements are shown in the drawing in a simplified schematic manner.
Herein, when an element is referred to as being "connected" or "coupled," it can be referred to as being "electrically connected" or "electrically coupled. "connected" or "coupled" may also mean that two or more elements co-operate or interact with each other. Furthermore, although the terms "first," "second," …, etc. may be used herein to describe various elements, this term is merely intended to distinguish between elements or operations that are described in the same technical term. Unless the context clearly indicates otherwise, the terms are not specifically intended or implied to be order or cis-ient nor intended to limit the invention.
Fig. 1 is a schematic diagram of a media streaming device according to some embodiments of the disclosure. The media streaming device 100 is electrically connected to the media playing device 200 for providing a media stream to the media playing device 200. The media streaming device 100 may be implemented as an over-the-top set-top box (OTT STB) or a television stick (TV stick). The media playback device 120 may be implemented as a television or a screen.
The media streaming device 100 includes a power manager 110, a streaming processor 120, and a voltage detector 130. The power manager 110 is configured to receive a power signal from the media playing device 200 to supply power to the stream processor 120. In some embodiments, the media streaming device 100 and the media playing device 200 respectively include universal serial bus ports (i.e., USB ports P1 and PA), and the power manager 110 is electrically connected to the USB ports P1 and PA to receive power signals. The power signal may include a supply current and a supply voltage.
The stream processor 120 is electrically connected to the power manager 110 and the media playing device 200, and is configured to receive the power signal and drive the media playing device 200 to play the media stream. The stream processor 120 may be implemented as a processing unit, a graphics processing unit, and a network communication unit capable of accessing the internet, such as a WiFi communication unit (not shown), and the like, to connect with a remote server, access media data including video and audio in the remote server, and provide the media data to the media playing device 200 in the form of a media stream for playing after processing.
In some embodiments, the media streaming device 100 and the media playing device 200 respectively include multimedia ports P2 and PB corresponding to each other. The multimedia port may be HDMI (High Definition Multimedia Interface ). The stream processor 120 is electrically connected to the media playing device 200 through the multimedia ports P2 and PB to provide a media stream. In other words, after the media streaming device 100 is plugged into the media playing device 200, the power signal can be obtained at the same time, and the media streaming is provided without connecting an additional power source through an additional power line.
The voltage detector 130 is electrically connected to the stream processor 120 and the USB port P1 (or the power manager 110) for obtaining at least a portion of the supply current. The "acquire" represents that the media streaming device 100 receives the "acquired current amount" from the media playing device 200 when the voltage detector 130 is driven. For example, if the current originally provided to the power manager 110 through the USB port P1 by the media player 200 is only 0.8 ampere, and the current preset to be obtained by the voltage detector 130 is 1 ampere, the voltage detector 130 is driven, and then the media player 200 will provide 1 ampere of current to the media streaming device 100 through the USB port P1 (the operation of the voltage detector 130 will be described in detail in the following paragraphs).
According to the detection result, the voltage detector 130 generates a detection signal (e.g., a current value or a voltage value) to the stream processor 120, so that the stream processor 120 determines whether the power supply voltage is stable and selectively operates in different modes. For example: when the supply voltage remains stable, the stream processor 120 operates in the first mode to provide the media stream. When the power supply voltage is unstable, the stream processor 120 is operated in the second mode instead to provide the media stream. The power consumption of the stream processor 120 when operating in the second mode is lower than the power consumption when operating in the first mode.
The magnitude of the current drawn/drawn by the voltage detector 130 may be self-setting, such as 0.5 amp, 1 amp, etc. In some embodiments, the magnitude of the current drawn/obtained may vary over time. For example: the voltage detector 130 may first obtain 0.5 ampere, and then adjust the obtained current to 1 ampere if the power supply voltage is stable.
Taking the media player 200 as an example, a portion of the televisions are configured with USB ports having USB2.0 specifications, and the power supply voltage is 5 volts and the power supply current is 0.5 amperes. However, when the media streaming device 100 is running, moments may still occur where higher currents or voltages are needed. By detecting the power supply capability of the media playing device 200, the media streaming device 100 can dynamically operate in different modes, so as to ensure that the media streaming device 200 can be normally provided, and avoid the problems of unstable operation, error and even damage of the media streaming device 100.
The "first mode" may be a normal operation state of the stream processor 120, and the "second mode" may be a state in which the stream processor 120 operates with low power consumption. In other words, the functions or performance performed by the stream processor 120 when operating in the second mode will be relatively low. The stream processor 120 can provide the media stream to the media playback device 200 in both modes, except that the quality of the media stream is different (e.g., lower resolution or reduced signal transmission bandwidth).
In one embodiment, the streaming processor 120 provides the media stream at the first resolution when operating in the first mode. When the stream processor 120 is operating in the second mode, the media stream is provided at the second resolution. The first resolution is greater than the second resolution.
In one embodiment, the stream processor 120 has a first clock speed when operating in a first mode and the stream processor 120 has a second clock speed when operating in a second mode. The first clock speed is greater than the second clock speed.
In one embodiment, the stream processor 120 generates the media stream according to a high dynamic range imaging technique (High Dynamic Range Imaging, HDR) while operating in a first mode.
In other embodiments, the streaming processor 120 may drive multiple antennas (not shown) of the media streaming device 100 to receive media data from a remote server when operating in the first mode. When the stream processor 120 is operating in the second mode, only a part of antennas are driven, and the rest antennas are turned off to receive the media data, so as to reduce the energy consumption.
The manner in which the stream processor 120 determines whether the supply voltage is stable through the voltage detector 130 is described later. As shown in fig. 1, in some embodiments, the voltage detector 130 includes a detection switch 131 and a detection resistor 132. The detection switch 131 may be a power switch connected in series with the detection resistor 132. The stream processor 120 is configured to turn on the detection switch 131 to enable the voltage detector 130 to form a current path to obtain at least a portion of the supply current. The magnitude of the current drawn will depend on the size of the sense resistor 132. In some embodiments, the detection resistor 132 may also be a variable resistor. The stream processor 120 can determine whether the power supply voltage in the power signal is stable when the voltage detector 130 is turned on. For example, the stream processor 120 may determine whether the supply voltage remains above a voltage threshold (e.g., 5 volts) for a period of detection to confirm whether the supply voltage is stable.
In some embodiments, the streaming processor 120 turns on the detection switch 131 when it is just started according to the power signal (i.e. when the media streaming device 100 is just connected to the media playing device 200), so as to determine whether the power supply voltage is stable through the voltage detector 130. The stream processor 120 determines according to the detection signal transmitted from the voltage detector 130, and the detection signal may be a supply current, a voltage signal of the voltage detector 130, or a voltage signal received by the power manager 110.
In other embodiments, the voltage detector 130 may not acquire the supply current and directly monitor the change of the supply voltage. The voltage detector 130 is electrically connected to a contact of the power manager 110 for receiving a power signal, so as to continuously or periodically detect the power supply voltage received by the power manager 110. During each detection, the stream processor 120 receives the voltage signal from the voltage detector 130 to determine whether the power supply voltage is higher than a voltage threshold (e.g., 5 v) in a period of detection, and if so, the power supply voltage is stable. If the supply voltage is not maintained above the voltage threshold during the detection period, the supply voltage is unstable.
Fig. 2 is a flow chart illustrating a media streaming method according to some embodiments of the present disclosure. In step S201, the media streaming device 100 is plugged into the media playing device 200. At this time, the power manager 110 receives the power signal provided by the media playing device 200 through the USB ports P1, PA.
In step S202, when the stream processor 120 of the media streaming device 100 is started according to the power signal, the stream processor 120 drives the voltage detector 130 to detect the power supply voltage of the power signal. Meanwhile, the streaming processor 120 may receive media video via an internal wireless transmission module. In step S203, the stream processor 120 determines whether the power supply voltage is stable, for example, whether the power supply voltage is maintained above a voltage threshold (e.g., 5 volts) for a period of detection, or whether the variation range of the power supply voltage exceeds a preset range for a period of detection.
As described above, in one embodiment, the stream processor 120 may enable the voltage detector 130 to draw at least a portion (e.g., 0.5 amp, 1 amp) of the supply current by turning on the detection switch 131, and determine whether an unstable change occurs in the supply voltage of the power signal. In another embodiment, the voltage detector 130 may continuously or periodically monitor/detect the power supply voltage received by the power manager 110, so that the stream processor 120 may determine whether the power supply voltage remains stable.
If the power supply voltage is stably maintained above the voltage threshold, in step S204, the stream processor 120 is operated in the first mode and provides the media stream through the multimedia ports P2, PB. If the power supply voltage is not stably maintained above the voltage threshold, in step S205, the stream processor 120 is operated in the second mode instead and provides the media stream through the multimedia ports P2, PB. The power consumption of the stream processor 120 when operating in the second mode is lower than the power consumption when operating in the first mode.
In addition, as shown in fig. 1, in some embodiments, the media streaming device 100 further includes a power converter 140. The power converter 140 is electrically connected between the power manager 110 and the stream processor 120, and is configured to convert the power signal to conform to the power specification of the stream processor 120. In some embodiments, the power converter 140 and the stream processor 120 may be disposed in the same system-on-a-chip 150.
The elements, method steps or technical features of the foregoing embodiments may be combined with each other, and are not limited to the text description order or the drawing presentation order in the present disclosure.
While the present disclosure has been described with reference to the embodiments, it should be understood that the invention is not limited thereto, but may be variously modified and modified by those skilled in the art without departing from the spirit and scope of the present disclosure, and thus the scope of the present disclosure is defined by the appended claims.

Claims (10)

1. A media streaming device, comprising:
a power manager for receiving a power signal from a media player, wherein the power signal comprises a power current and a power voltage;
a streaming processor, electrically connected to the power manager, for receiving the power signal and providing a media streaming to the media playing device for playing; and
the voltage detector is electrically connected with the streaming processor and is used for acquiring at least one part of the power supply current to generate a detection signal to the streaming processor, wherein the streaming processor is used for judging whether the power supply voltage is stable or not, and when the power supply voltage is stable, the streaming processor operates in a first mode to provide the media streaming; when the power supply voltage is unstable, the stream processor operates in a second mode to provide the media stream, and the power consumption of the stream processor when operating in the second mode is lower than that of the stream processor when operating in the first mode.
2. The media streaming device of claim 1, wherein the voltage detector further comprises a detection switch, the streaming processor is configured to turn on the detection switch to determine whether the supply voltage is stable through the voltage detector, turn on the detection switch when the streaming processor is activated according to the power signal, and determine whether the supply voltage is higher than a voltage threshold during a detection period through the voltage detector.
3. The media streaming device of claim 1, further comprising a usb port and a multimedia interface port, wherein the power manager is electrically connected to the usb port to receive the power signal, and the streaming processor is electrically connected to the multimedia interface port to provide the media streaming to the media playing device for playing.
4. A method of media streaming, comprising:
receiving a power signal from a media playing device through a power manager of a media streaming device, wherein the power signal comprises a power supply current and a power supply voltage;
a stream processor for driving the media stream device according to the power signal;
when the streaming processor is started, judging whether the power supply voltage is stable or not through a voltage detector of the media streaming device;
when the power supply voltage is kept stable, controlling the streaming processor to operate in a first mode to provide the media streaming; and
when the power supply voltage is unstable, the stream processor is controlled to operate in a second mode to provide the media stream, wherein the power consumption of the stream processor when operating in the second mode is lower than that of the stream processor when operating in the first mode.
5. The method of claim 4, wherein determining whether the supply voltage remains stable further comprises:
detecting the power supply voltage received by the power supply manager; and
determining whether the power supply voltage remains above a voltage threshold for a detection period.
6. The method of claim 4, wherein determining whether the supply voltage remains stable further comprises:
acquiring at least a part of the power supply current, and judging whether the power supply voltage is stable; and
when the streaming processor is started, a detection switch in the voltage detector is turned on to acquire at least a part of the supply current.
7. The method of claim 4, wherein providing the media stream further comprises:
receiving the power signal through a usb port of the media streaming device to drive the streaming processor; and
providing the media stream to the media playing device through a multimedia interface port of the media streaming device.
8. A media streaming device, comprising:
a power manager for receiving a power signal from a media playing device, wherein the power signal comprises a power supply voltage;
the streaming processor is electrically connected with the power manager and used for receiving the power signal and providing a media streaming to the media playing device for playing; and
the streaming processor is used for judging whether the power supply voltage is stable or not, and when the power supply voltage is stable, the streaming processor operates in a first mode to provide the media streaming; when the power supply voltage is unstable, the stream processor operates in a second mode to provide the media stream, and the power consumption of the stream processor when operating in the second mode is lower than that of the stream processor when operating in the first mode.
9. The media streaming device of claim 8, wherein the voltage detector is configured to continuously or periodically detect the supply voltage, and the streaming processor is configured to determine whether the supply voltage remains above a voltage threshold during a detection period.
10. The media streaming device of claim 8, further comprising a usb port and a multimedia interface port, wherein the power manager is electrically connected to the usb port to receive the power signal, and the streaming processor is electrically connected to the multimedia interface port to provide the media streaming to the media playing device for playing.
CN202210010972.3A 2022-01-06 2022-01-06 Media streaming device and media streaming method Pending CN116456134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210010972.3A CN116456134A (en) 2022-01-06 2022-01-06 Media streaming device and media streaming method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210010972.3A CN116456134A (en) 2022-01-06 2022-01-06 Media streaming device and media streaming method

Publications (1)

Publication Number Publication Date
CN116456134A true CN116456134A (en) 2023-07-18

Family

ID=87134290

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210010972.3A Pending CN116456134A (en) 2022-01-06 2022-01-06 Media streaming device and media streaming method

Country Status (1)

Country Link
CN (1) CN116456134A (en)

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