CN101742205B - Method for realizing wireless signal transmission and wireless audio and video device - Google Patents

Abstract

The invention discloses a method for realizing wireless signal transmission, which comprises the steps of arranging a set top box and a signal transmitting device, wherein the set top box and the signal transmitting device are connected with each other through a data line; setting a wireless audio and video device, and internally setting a signal receiver, a remote controller and a display device; the signal transmitting device receives the audio and video signals transmitted by the set top box, decodes the received signals and transmits and outputs the decoded signals; the remote controller controls the signal transmitting device to select the audio and video signals to be transmitted by sensing infrared sensing signals; the wireless audio and video machine remotely senses and receives the audio and video signals converted by the signal transmitting device through a built-in signal receiver and displays and outputs the audio and video signals in the display device. The invention also discloses a wireless audio and video device for realizing the method.

Description

Implementation method of wireless signal transmission and wireless audio and video device

technical field

The present invention relates to the field of wireless communication technology and the field of electronic technology, in particular to a method for realizing wireless signal transmission, and more particularly to a wireless audio and video device for realizing the method.

Background technique

In daily life, watching TV has become an indispensable way of entertainment for people to enjoy spiritual and civilized life. The rich and colorful TV programs not only bring people easy entertainment and enjoyment, but also are an important way to appoint and understand various information, and provide people with However, as a kind of electrical equipment, the TV set can only be used in a fixed position after people's work and leisure due to the limitation of its shape and volume. The sense of rhythm is obviously accelerated, and there is not much time to watch TV in a fixed place. Therefore, ordinary TVs are increasingly unable to meet people's daily needs.

At present, there is an urgent need for a device that is easy to carry and convenient for people to watch TV programs anytime and anywhere without increasing the cost, that is, a portable TV playback device that can be remotely controlled by wireless transmission technology, such as in the same house, Only one set-top box and one fixed signal transmitter are needed to wirelessly link to multiple display output terminals, and the structure of the wireless network system is used to realize the mode of multi-channel output indefinitely, so that multiple rooms can receive signals at the same time and display output at the same time, satisfying people You can watch TV programs anytime, anywhere.

Contents of the invention

The purpose of the present invention is to provide a method for realizing wireless signal transmission, which realizes the remote transmission of multimedia data such as TV programs through wireless transmission and infrared induction, so that it can receive and display output audio and video signals within a certain remote transmission range; The invention also provides an wireless audio and video device for realizing the method.

For effectively solving the problems referred to above, the technical scheme that the present invention takes is:

A method for implementing wireless signal transmission, the method comprising the following steps:

(1) A set-top box and a signal transmitting device are set, and the set-top box and the signal transmitting device are connected to each other through data lines; the set-top box is also provided with a plurality of audio and video output ports, and the signal transmitting device is also provided with multiple An audio and video receiving end, a USB data interface, an infrared signal emitting tube for controlling the channel selection of the set-top box, and an external SD card holder. Automatically download and save pre-set TV programs via SD card for viewing at a convenient time.

(2) A wireless audio and video device is set, and a signal receiver, a remote controller and a display device are built in; the outside of the wireless audio and video device is also provided with an RCA port that transmits video data to the TV, and an external memory card. Deck, camera window with camera function, earphone jack for external earphones, audio-electric conversion device for recording, USB interface for power supply and external data transmission, buttons for operating game functions, and built-in speakers.

(3) The signal transmitting device receives the audio and video signal transmitted by the set-top box, and transmits and outputs the received signal after decoding; the set-top box can transmit the audio and video signal to the signal transmitting device through different The data transmission line arbitrarily transmits the same signal to an audio and video playback device such as a TV set connected thereto, and the selection of the audio and video signal is controlled by the signal transmitting device.

(4) The remote controller controls the signal transmitting device to select the audio and video signal to be transmitted by sensing infrared sensing signals; The selection control of audio and video signals.

(5) The wireless audio-video machine remotely senses and receives the audio-video signal converted by the signal transmitting device through the built-in signal receiver and displays and outputs it in the display device; the signal reception of the wireless audio-video device In addition to being able to normally receive the audio and video signals from the signal transmitting device, the device also has an IR function, which can directly control the TV. Through the function buttons of the remote control, the corresponding instructions are sent to the The signal receiver, and transmit the instruction to the IR part, and after receiving the instruction from the signal receiver, the IR translates it into a corresponding IR code and emits it to directly control the controlled device, so that the IR part controls the infrared code. Learn and code launch.

A wireless audio and video device for realizing the above method, which includes a set-top box, which includes a signal transmitting device and a wireless audio and video machine, and the signal transmitting device also includes a plurality of audio and video input ports and an infrared emitting tube and an external One SD card slot. Therefore, the wireless audio and video machine includes a signal receiver, a remote controller and a display device inside, and also includes an RCA port and a memory card outside.

deck and memory card; the signal transmitting device is connected to the set-top box through at least one data transmission line, and the signal receiver, remote controller and display device inside the wireless audio and video machine are connected to each other and connected to the RCA port and the memory card holder are conductively connected to each other.

The wireless audio and video machine also includes a camera window, an earphone interface that can be connected to an external earphone, an audio-electric conversion device that can record, a USB interface for power supply and external data transmission, buttons that can operate game functions, and a built-in speaker.

The wireless audio and video machine also includes a key control area and a display screen touch key control area, which includes a play/pause key, a recording key, a fast forward key, a fast rewind key, a previous song key, a next song key, and a pairing key , The operation key when switching on and off the machine to play games and the control key of the learning remote control.

The beneficial effects of the present invention are: the wireless signal transmission method provided by the present invention only needs one set-top box and or one fixed signal transmitter, which is wirelessly linked to multiple display output terminals, so that multiple rooms can receive signals at the same time and display output at the same time, satisfying people The demand for watching TV programs at any place and any time; it has the function of reading and sending infrared signals, and completes the selection control of the audio and video signals with the remote control; it can switch TV programs at any time and place without hindrance Material limitation; the wireless audio and video device provided by the present invention supports the playback of video formats such as AVI, RM, RMVB, FLV, WMV, and supports music playback in formats such as WMA, MP3, FLAC, and APE. Wireless audio and video transmission (2.4G transmission/reception ), can transmit 1080P high-definition video, automatically save the shot content, play it after connecting to the TV through a data cable, and watch the shot content on the TV; It can be recorded and then played on a portable TV; its body is small and easy to carry, besides watching TV, it also has a multimedia playback function, and a variety of built-in games meet people's daily entertainment needs.

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is a schematic diagram of the connection structure of wireless audio and video device components in the present invention;

Fig. 2 is a schematic diagram of another component connection structure of the wireless audio-video device in the present invention;

Fig. 3 is a schematic structural diagram of a wireless audio and video machine assembly in the present invention;

Fig. 4 is a schematic structural diagram of the components of the signal transmitting device in the present invention.

Detailed ways

Adopt 2.4G public frequency band in the present embodiment: 2402-2483MHz, adopt AHF self-adaptive frequency hopping technology, GFSK (Gaussian frequency keying) modulation mode, can coexist and use with bluetooth, WIFI, its signal transmission power is 8-10dBm, receiving The sensitivity is -90 to -100dBm, the straight-line transmission distance in open space is within 200m, the audio accuracy is 48K sampling rate, 24bit precision, frequency response 100HZ-18000HZ wireless transmission; video codec up to 640×48030fps, voice response range is 20HZ- Play MP3 directly at 19200Hz, the output signal-to-noise ratio (SNR) is 90dB, the audio output power is RL＝1620mW, RL＝3210mW; its working current is 170mA-190mA, the working voltage is powered by lithium battery (3.7-5.0V), and supports External power supply and battery charging.

Referring to Fig. 1 and Fig. 2, a kind of implementation method of wireless signal transmission, its method comprises the following steps:

(1) A set-top box and a signal transmitting device are set, and the set-top box and the signal transmitting device are connected to each other through data lines; the set-top box is also provided with a plurality of audio and video output ports, and the signal transmitting device is also provided with multiple An audio and video receiving end, a USB data interface, an infrared signal emitting tube for controlling the channel selection of the set-top box, and an external SD card holder.

(2) A wireless audio and video device is set, and a signal receiver, a remote controller and a display device are built in; the outside of the wireless audio and video device is also provided with an RCA port that transmits video data to the TV, and an external memory card. Deck, camera window with camera function, earphone jack for external earphones, audio-electric conversion device for recording, USB interface for power supply and external data transmission, buttons for operating game functions, and built-in speakers.

(3) The signal transmitting device receives the audio and video signal transmitted by the set-top box, and transmits the received signal after decoding and processing; the set-top box can transmit the audio and video signal to the signal transmitting device through different The data transmission line arbitrarily transmits the same signal to an audio and video playback device such as a television set connected thereto, and the selection of the audio and video signal is controlled by the signal transmitting device.

(4) The remote controller controls the signal transmitting device to select the audio and video signal to be transmitted by sensing infrared sensing signals; The selection control of audio and video signals.

(5) The wireless audio-video machine remotely senses and receives the audio-video signal converted by the signal transmitting device through the built-in signal receiver and displays and outputs it in the display device; the signal reception of the wireless audio-video device In addition to being able to normally receive the audio and video signals from the signal transmitting device, the device also has an IR function, which can directly control the TV. Through the function buttons of the remote control, the corresponding instructions are sent to the The signal receiver, and transmit the instruction to the IR part, and after receiving the instruction from the signal receiver, the IR translates it into a corresponding IR code and emits it to directly control the controlled device, so that the IR part controls the infrared code. Learn and code launch.

Referring to Fig. 3 and Fig. 4, a kind of wireless audio-video device of realizing above-mentioned method, it comprises a set-top box, and it comprises a signal transmitting device and a wireless audio-video machine, and described signal transmitting device also comprises a plurality of audio-video input ports and An infrared emission tube and an SD card holder; the inside of the wireless audio and video machine includes a signal receiver, a remote controller and a display device, and the outside also includes an RCA port, a memory card holder and a memory card; the signal The transmitting device is connected to the set-top box through at least one data transmission line, and the signal receiver, the remote control and the display device inside the wireless audio and video machine are connected to each other at one time and are connected to the RCA port and the memory card holder. .

The wireless audio and video machine also includes a camera window, an earphone interface that can be connected to an external earphone, an audio-electric conversion device that can record, a USB interface for power supply and external data transmission, buttons that can operate game functions, and a built-in speaker.

The wireless audio and video machine also includes a key control area and a display frequency touch key control area, which includes a play/pause key, a recording key, a fast forward key, a fast rewind key, a previous song key, a next song key, Code, operation keys for switching on and off when playing games, and control keys for learning remote control.

The present invention is not limited to the above-mentioned embodiments, and all embodiments that use structures and methods similar to the present invention to achieve the purpose of the present invention are within the protection scope of the present invention.

Claims (2)

1. the implementation method of a transmission of wireless signals, is characterized in that, its method comprises the following steps:

(1) set-top box, a sender unit are set, and described set-top box and described sender unit interconnect by data wire;

(2) a wireless audio and video device is set, and a built-in signal receiver, a remote controller and a display unit;

(3) described sender unit receives the audio-video signal of described set-top box transmission, and emission output after the signal decoding that receives is processed;

(4) described remote controller need to select the audio-video signal of transmission by the described sender unit of induction infrared induction signal controlling;

(5) described wireless audio and video device receives the audio-video signal of changing through described sender unit and it is shown output in described display unit by the long-range induction of built-in signal receiver;

Described step (1) is further comprising the steps of: described set-top box also is provided with a plurality of audio frequency and video output ports, and described sender unit also is provided with infrared signal transmitting tube and an external SD deck of a plurality of audio frequency and video receiving terminals, usb data interface, a described set-top box channel selection of control;

Described step (2) is further comprising the steps of: but but also arrange in wireless audio and video device outside with video data transmitting to the external interface of the deck of the RCA port external connection of storage card of television set, the earphone interface with shooting window peripheral earphone of camera function, the acoustical-electrical transducer spare that can record, the USB interface that is used for Power supply and the external transmission of data and game paddle, can the operate game function button and built-in loudspeaker device;

Described step (3) is further comprising the steps of: described set-top box can be transmitted arbitrarily same signal to the television set audio and video display device that is attached thereto in the transmission tone vision signal by different data transmission links in described sender unit, the selection of described audio-video signal is controlled by described sender unit;

Described step (4) is further comprising the steps of; Described sender unit reads and sends the infrared signal function, jointly completes the selection of described audio-video signal with described remote controller and controls;

described step (5) is further comprising the steps of: outside the audio frequency and video frequency signal of the described sender unit of the normal acceptance of the signal receiver decapacitation of wireless audio and video device, also possesses infrared function, can directly control television set, each function button by described remote controller, arrive described signal receiver by the corresponding instruction of high-frequency radio frequency transmitting, and send this instruction to infrared part, infrared part receives to be translated into corresponding infrared code after the instruction that described signal receiver sends and emits direct control controlled device, make infrared part control study and the coded excitation of infrared code.

2. wireless audio and video device of realizing the described method of claim 1, it comprises a set-top box, it is characterized in that, it comprises a sender unit and a wireless audio and video machine, and described sender unit also comprises a plurality of audio frequency and video input ports, an infrared transmitting tube and a SD deck; Described wireless audio and video machine inside comprises a signal receiver, a remote controller and a display unit, and the outside also comprises a RCA port, a memory card holder and storage card; Described sender unit interconnects by at least one data line and described set-top box, described wireless audio and video machine inner described signal receiver, remote controller and display unit interconnects and be connected with described RCA port and memory card holder mutual conduction;

But described wireless audio and video machine also comprises the earphone interface of window peripheral earphone of making a video recording, the acoustical-electrical transducer spare that can record, is used for USB interface, game control button and the built-in loudspeaker device of Power supply and the external transmission of data;

Described wireless audio and video machine also comprises a button control area and display screen touch key-press control area, the built-in MP3 that comprises, and MP4 operation keys and study remote controller are controlled the operating key of key.

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