TWM597020U - Audio source control device of digital video recorder - Google Patents

Abstract

A sound source control device of a digital video recorder is used to transmit a sound source signal from the digital video recorder to at least one of a plurality of players. The sound source control device includes a remote control unit and a sound source control unit. The remote control unit is used to generate a control signal related to the at least one of the players. The audio source control unit receives the audio source signal and the control signal from the digital video recorder and the remote control unit, respectively, and according to The control signal allows the audio source signal to be transmitted from the digital video recorder to the at least one of the players, so that the at least one of the players plays according to the audio source signal.

Description

Audio source control device of digital video recorder

The invention relates to a sound source control device, in particular to a sound source control device of a digital video recorder.

The existing audio source transceiving system includes an audio source transceiving unit for receiving and outputting an audio source signal (for example, a digital video recorder, Digital Video Recorder, DVR), a plurality of players electrically connected to the audio source transceiving unit, and other necessary components. When the sound source transceiver unit receives the sound source signal, it will first perform sound effect processing on the sound source signal, and then transmit the processed sound source signal to each player and play simultaneously, that is, the user is using In the existing audio source transceiver system, it is not possible to choose to allow only some of these players to perform audio source playback, resulting in inconvenience in use. Therefore, how to design a player that can select the player to be played, which is a problem that related companies want to improve.

Therefore, the purpose of the present invention is to provide a sound source control device of a digital video recorder capable of selecting a player to be played for sound source playback.

Therefore, the sound source control device of the new digital video recorder is used to transmit a sound source signal from the digital video recorder to at least one of a plurality of players. The sound source control device includes a remote control unit and a sound source control unit.

The remote control unit is used to generate a control signal related to the at least one of the players.

The audio source control unit is used to electrically connect the players and the digital video recorder, and also connect the signal to the remote control unit to receive the audio source signal and the control signal from the digital video recorder and the remote control unit, respectively, the audio source The control unit allows the audio source signal to be transmitted from the digital video recorder to the at least one of the players according to the control signal, so that the at least one of the players plays according to the audio source signal.

The effect of the present invention lies in that the audio source control unit allows the audio source signal to be transmitted from the digital video recorder to the at least one of the players according to the control signal, so that the user can select the desired playback Player to play, so that it is more convenient for users to use.

Referring to FIG. 1, an embodiment of the audio source control device of the new digital video recorder is suitable for transmitting an audio source signal from the digital video recorder (Digital Video Recorder, DVR) 10 to a plurality of players 101, 102, 103 At least one of them. The audio source control device, the digital video recorder 10, and the players 101 to 103 are combined into an audio source transceiver system. In this embodiment, three players 101-103 are taken as an example, but not limited to this. The sound source control device includes a remote control unit 1 and a sound source control unit 2.

The remote control unit 1 is used to generate a control signal related to the at least one of the players 101 to 103 in response to an input operation corresponding to the selection of a player to be played by one of the users. In this embodiment, the remote control unit 1 is, for example, an infrared remote control, and the remote control unit 1 has three function keys 11, 12, 13 corresponding to the players 101-103, but not limited thereto. In other embodiments, the remote control unit 1 is, for example, a smartphone, tablet, or other mobile device loaded with related applications, and the control signal related to the at least one of the players 101 to 103 may be The user performs an input operation in the application program to obtain.

In addition, for example, when the user presses the function key 11, the control signal generated by the remote control unit 1 is related to the playback control of the player 101. When the user presses the function keys 11 to 13, the The control signal generated by the remote control unit 1 is related to the playback control of the players 101-103.

The audio source control unit 2 is used to electrically connect the players 101-103 and the digital video recorder 10, and also connects the signal to the remote control unit 1. The audio source control unit 2 receives the audio source signal and the control signal from the digital video recorder 10 and the remote control unit 1, respectively, and allows the audio source signal to be transmitted from the digital video recorder 10 to the players according to the control signal The at least one of 101-103, so that the at least one of the players 101-103 plays according to the audio signal. In this embodiment, the sound source control unit 2 includes a signal receiving module 21, an analog-to-digital conversion module 22, a reverse module 23, a driving module 24, and a multiplexing module 25. The sound source control unit 2 is connected to the remote control unit 1 in a wireless connection, but is not limited thereto. In other embodiments, the sound source control unit 2 can also be connected to the remote control unit 1 in a wired connection.

The signal receiving module 21 is connected to the remote control unit 1 to receive the control signal, and generates an analog signal according to the control signal.

The analog-to-digital conversion module 22 is electrically connected to the signal receiving module 21 to receive the analog signal and convert the analog signal into a digital signal. In this embodiment, the analog-to-digital conversion module 22 is a decoder module composed of 74LS138, but it is not limited thereto.

The reverse module 23 is electrically connected to the analog-to-digital conversion module 22 to receive the digital signal, and reverses the digital signal to generate a reverse signal.

The driving module 24 is electrically connected to the reverse module 23 to receive the reverse signal, and generates a drive control signal according to the reverse signal. In this embodiment, the driving module 24 is a high voltage and large current common emitter Darlington transistor array integrated circuit (ULN2003A), but it is not limited thereto.

The multiplexing module 25 is used to electrically connect the players 101 to 103 and the digital video recorder 10, and also electrically connect the driving module 24. The multiplex module 25 receives the sound source signal and the drive control signal from the digital video recorder 10 and the drive module 24 respectively, and is controlled by the drive control signal to control the sound source signal from the digital video recorder 10 Transmitted to the at least one of the players 101-103. For example, when the control signal generated by the remote control unit 1 is related to the player 101, the multiplexing module 25 is controlled by the drive control signal to transmit the audio source signal from the digital video recorder 10 to the Player 101; when the control signal generated by the remote control unit 1 is related to the players 101~103, the multiplexing module 25 is controlled by the drive control signal to output the audio signal from the digital video recorder 10 Transmission to the players 101~103. In addition, in this embodiment, the multiplexing module 25 is a relay module, but it is not limited thereto.

In summary, according to the control signal from the remote control unit 1, the sound source control unit 2 can decide which players 101 to 103 to play the sound source. In this way, compared with the existing sound source transceiver system, the use of this The new audio source transceiver system composed of the audio source control device can be used by users to choose the player they want to play, and has the characteristics of being more convenient for users to use. Therefore, it can indeed achieve the purpose of new cost.

However, the above are only examples of the new model. When the scope of the new model cannot be limited by this, any simple equivalent changes and modifications made according to the patent application scope and patent specification content of the new model are still regarded as Within the scope of this new patent.

1: Remote control unit 10: digital video recorder 101~103: Player 11~13: Function keys 2: Audio source control unit 21: Signal receiving module 22: Analog to digital conversion module 23: reverse module 24: drive module 25: multiplex module

Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: FIG. 1 is a block diagram illustrating an embodiment of the audio source control device of the new digital video recorder.

1: Remote control unit

10: digital video recorder

101~103: Player

11~13: Function keys

2: Audio source control unit

21: Signal receiving module

22: Analog to digital conversion module

23: reverse module

24: drive module

25: multiplex module

Claims (4)

An audio source control device for a digital video recorder is used to transmit an audio source signal from the digital video recorder to at least one of a plurality of players. The audio source control device includes: A remote control unit for generating a control signal related to the at least one of the players; and An audio source control unit for electrically connecting the players and the digital video recorder, and also signally connecting the remote control unit to receive the audio source signal and the control signal from the digital video recorder and the remote control unit, respectively, the The sound source control unit allows the sound source signal to be transmitted from the digital video recorder to the at least one of the players according to the control signal, so that the at least one of the players plays according to the sound source signal. The audio source control device of the digital video recorder according to claim 1, wherein the audio source control unit includes, A signal receiving module, the signal is connected to the remote control unit to receive the control signal, and an analog signal is generated according to the control signal, An analog-to-digital conversion module, electrically connected to the signal receiving module to receive the analog signal, and convert the analog signal into a digital signal, A reverse module, electrically connecting the analog to digital conversion module to receive the digital signal, and inverting the digital signal to generate a reverse signal, A drive module, electrically connected to the reverse module to receive the reverse signal, and generate a drive control signal according to the reverse signal, and A multiplex module for electrically connecting the players and the digital video recorder, and also electrically connecting the drive module to receive the sound source signal and the drive from the digital video recorder and the drive module, respectively The control signal, the multiplexing module is controlled by the drive control signal to transmit the audio source signal from the digital video recorder to the at least one of the players. The audio source control device of the digital video recorder according to claim 2, wherein the multiplexing module is a relay module. The audio source control device of the digital video recorder according to claim 2, wherein the driving module is a high voltage and large current common emitter Darlington transistor array integrated circuit.

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