WO2018019117A1

WO2018019117A1 - Set-top box

Info

Publication number: WO2018019117A1
Application number: PCT/CN2017/092363
Authority: WO
Inventors: 曹鹏
Original assignee: 深圳创维数字技术有限公司
Priority date: 2016-07-29
Filing date: 2017-07-10
Publication date: 2018-02-01
Also published as: CN206024016U

Abstract

A set-top box, comprising: a set-top box body, wherein the set-top box body comprises a video output interface and an audio output interface, and the video output interface is configured to connect an output device; and a frequency modulation apparatus, wherein the frequency modulation apparatus is configured to modulate audio of the set-top box body to a pre-set frequency, an input end of the frequency modulation apparatus is connected to the audio output interface, and the frequency modulation apparatus is in wireless connection with a plurality of frequency modulation terminals.

Description

Set top box

Technical field

The present disclosure relates to the field of audio and video processing technologies, for example, to a set top box.

Background technique

Most of the set-top box devices in the related art are wired to the television through HDMI (High Definition Multimedia Interface) or AV cable (short for Audio Cable and Video Cable). It is used to transmit pictures and sounds at the same time. The TV sets to one or more viewers, but the TV can only output one volume at a time. Multiple viewers cannot adjust the volume according to personal preference, so it is impossible to transmit specific sounds. Can increase or decrease the overall sound. For example, a hearing impaired person wants a larger volume, while a person who wants to sleep can have a smaller volume and cannot satisfy such a specific occasion.

The sound is usually transmitted to different terminals using a local area network sharing to achieve different specific volumes. The solution requires the set-top box to support the network function. Through the home LAN, the sound is shared to different terminal products through the network at the set-top box end, and the terminal also needs to support the network function. The set-top box hardware is required to support the network, and the software is shared, and the user needs to own the router to realize the home LAN. The implementation cost of the solution is relatively high and the operation is complicated.

Some use Bluetooth to transmit sound to different terminals to achieve a personalized scene. The set-top box transmits sound from the Bluetooth device to the user's terminal via a built-in Bluetooth device. The solution requires a set-top box to support Bluetooth devices, and requires a set-top box to support Bluetooth-operated software functions. Bluetooth refers to one-to-one support and is costly.

Summary of the invention

The present disclosure provides a set top box, which realizes wireless transmission of the set top box audio signal, and can personally adjust the volume of the set top box, is low cost, easy to operate, and simple to implement.

The present disclosure provides a set top box, including:

a set top box body, the set top box body includes a video output interface and an audio output interface, and the video output interface is configured to connect the output device;

a frequency modulation device, the frequency modulation device is configured to modulate audio of the set top box body to a preset frequency, wherein an input end of the frequency modulation device is connected to the audio output interface, and the frequency modulation device is Multiple FM terminals are connected wirelessly.

Optionally, the FM terminal comprises at least one of a mobile phone, a radio, and a headset.

Optionally, the audio output interface is further configured to be connected to the output device.

Optionally, the output device comprises at least one of a television and an audio.

Optionally, the frequency modulation device comprises an FM transmitting integrated circuit.

Optionally, the FM transmitting integrated circuit comprises a dedicated chip for FM stereo transmission.

Optionally, the special chip for the FM stereo transmission is BH1417F.

The present disclosure adopts the set top box provided by the embodiment, and the user can adjust the volume through the FM terminal of the user. The technical solution realizes the wireless transmission of the audio, satisfies the individual needs of the viewer, and has low implementation cost and simple operation.

BRIEF abstract

FIG. 1 is a structural block diagram of a set top box provided by this embodiment.

detailed description

The technical solutions of the present disclosure will be further described in detail below with reference to the accompanying drawings, and the features of the following embodiments and embodiments may be combined with each other without conflict.

FIG. 1 is a structural block diagram of a set top box provided by this embodiment. As shown in FIG. 1, the set top box includes a set top box body 1, and the set top box body 1 includes a video output interface 2 and an audio output interface 3; and an FM device (frequency modulation device) for modulating the audio of the set top box to a preset frequency. 4. The input end of the FM device 4 is connected to the audio output interface 3, the FM device 4 is wirelessly connected to a plurality of FM terminals 5, and the output device 6 is connected to the video output interface 2. Optionally, the FM device 4 is wirelessly connected to the plurality of FM terminals 5 by a frequency modulation technology, that is, the audio signals are transmitted by radio waves. The FM device can operate in the frequency band of 87 MHz to 108 MHz and is used together with a peripheral circuit to transmit an audio signal.

The set-top box provided by this embodiment outputs video to the output device 6 through the video output interface 2, and the audio output from the set-top box audio output interface 3 is modulated to a preset frequency by the FM device 4, and the FM device 4 wirelessly transmits the audio of the preset frequency to the audio device. The FM terminal 5 allows the user to adjust the volume through his own FM terminal 5. The technical solution realizes wireless transmission of audio, satisfies the individual needs of the viewer, and realizes relatively low cost and simple operation.

Optionally, in this embodiment, the FM terminal 5 includes at least one of a mobile phone, a radio, and a headset, which may be a headset, and mutual interference does not occur between different users, wherein the hand The machine is a smart terminal with a radio function, and the FM terminal 5 can also be other smart terminals; the radio can be a portable radio or a car radio. Of course, the type of the FM terminal 5 is only required to be able to receive an FM signal and play a sound.

In another embodiment, the audio output interface 3 is connected to the output device 6. The set top box provided by this embodiment may select to use the output device 6 to play video and audio, or may choose to use the output device 6 to play video, the FM terminal 5 to play audio, or only the FM terminal 5 to play audio, and the output device 6 is turned off, and the function is more Rich, can meet the different needs of users.

Optionally, in this embodiment, the output device 6 is at least one of a television set and an audio. When the output device 6 is a television, the television can be controlled to simultaneously play video and audio, and the television can only control the video to be played, and the audio is wirelessly transmitted by the antenna of the FM device 4; when the output device 6 is an audio, the audio can be controlled to be played by the audio. .

In some embodiments, the FM device 4 includes an FM transmit integrated circuit. Optionally, the FM transmitting integrated circuit comprises an FM stereo transmitting dedicated chip, and the FM stereo transmitting dedicated chip model may be a BH1417F. The BH1417F is a large-scale integrated circuit that integrates stereo modulation, FM modulation, frequency synthesis, and RF (Radio Frequency) transmitters. It requires only a few peripheral devices to obtain excellent stereo FM signals. Reduce development time and reduce production costs. Of course, other circuit modules and devices can also be used to implement FM functions.

Industrial applicability

The present disclosure provides a set top box that allows a user to adjust the volume through his own FM terminal. The technical solution realizes wireless transmission of audio, satisfies the individual needs of the viewer, and achieves relatively low cost and simple operation.

Claims

A set top box comprising:

a set top box body, the set top box body includes a video output interface and an audio output interface, and the video output interface is configured to connect the output device;

a frequency modulation device, the frequency modulation device is configured to modulate audio of the set top box body to a preset frequency, wherein an input end of the frequency modulation device is connected to the audio output interface, and the frequency modulation device and the plurality of frequency modulation terminals are wireless connection.
The set top box of claim 1, wherein the FM terminal comprises at least one of a cell phone, a radio, and a headset.
The set top box of claim 1 wherein said audio output interface is further configured to interface with said output device.
The set top box of claim 3, wherein the output device comprises at least one of a television set and an audio.
The set top box of claim 1 wherein said frequency modulation means comprises an FM transmit integrated circuit.
The set top box of claim 5 wherein said FM transmitting integrated circuit comprises a frequency modulated stereo transmitting dedicated chip.
The set top box according to claim 6, wherein said FM stereo transmission dedicated chip model is BH1417F.