KR0168799B1 - Recording/playback system for handsfree kit - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION The invention described in the claims relates to a vehicle handsfree kit.

2. Technical problem to be solved by the present invention: Provides a device for recording / playing the call content and general voice in a vehicle equipped with a vehicle hands-free kit.

3. Summary of the Solution of the Invention: Add a recording and playback function to the vehicle hands-free kit, and if the mobile wireless phone is mounted on the cradle, only normal voice recording is possible for the performance of the speakerphone function. Enables recording of city calls.

4. Significant Uses of the Invention: Used in vehicles equipped with a vehicle handsfree kit.

Description

Recording / Playback Device of Car Hands-free Kit

1 is a block diagram showing a recording / playback apparatus according to the present invention. 2 is a flowchart showing a recording / playback method according to the present invention.

* Explanation of symbols for main parts of the drawings

10: mobile wireless telephone 20: microprocessor

30: currency codec 40: general codec

50: digital signal processor 60: voice prompt prompt

70: voice ram

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hands-free kit for a vehicle that mounts a mobile wireless telephone on a cradle, and more particularly, to an apparatus for recording and playing back a call or general voice.

In general, a vehicle hands-free kit has a function of charging a mobile wireless telephone when the vehicle is depleted or by adding a charging function to a cradle when the battery of the mobile wireless telephone is exhausted.

While the vehicle is moving, when the user uses the vehicle hands-free kit to make a call with the other party, if there is an important part of the contents of the call, the user memorizes the contents until the vehicle stops and then notes or writes with a writing instrument while driving. I had no choice but to. In the former case, the contents of the call can be forgotten, and in the latter case, the risk is accompanied. In addition, a separate recorder was required to record important contents between the broadcast contents and the passengers coming from the radio.

Accordingly, an object of the present invention is to provide an apparatus for recording / reproducing call contents or general voice through a vehicle hands-free kit.

In accordance with another aspect of the present invention, there is provided a recording device of a vehicle hands-free kit, comprising: a mobile wireless telephone having a plurality of keys, a cradle for mounting the mobile wireless telephone, a speaker, and a microphone to provide a general voice signal; A state check signal by checking whether a general codec to be processed, a call codec to process a call voice signal connected to a telephone line, a memory to store the general or call voice signal, and whether or not a mobile wireless telephone is busy on the cradle And generating a recording execution key, a recording end key, a playback key, a deletion key, etc. by analyzing the combined key signals inputted from the mobile wireless telephone. A control unit for generating a play signal, a delete signal, and the like, and set a speakerphone priority mode that supports recording of a general voice signal according to the status check signal but restricts recording of a call voice signal. In response to an input of a signal or a delete signal, record a digital voice signal transmitted from the call codec or the general codec to the memory, or read and play the voice signal stored in the memory to the call codec or the general codec, And a digital signal processor for deleting a call voice signal or a general voice signal recorded in the memory. DETAILED DESCRIPTION A detailed description of preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals have the same reference numerals as much as possible even if displayed on different drawings. In addition, in the following description, many specific details such as components of a specific circuit are shown, which are provided to help a more general understanding of the present invention, and the present invention may be practiced without these specific details. It will be obvious to those skilled in the art. In describing the present invention, when it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Terms to be described later are defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or a chip designer, and the definitions should be made based on the contents throughout the present specification.

1 is a block diagram showing a recording / playback apparatus according to the present invention. A mobile wireless telephone 10 having various keys and capable of inputting a recording execution key, recording end key, playback key, and deletion key by a combination of arbitrary keys, a cradle 80 for mounting the phone 10, and the cradle 80 during a call When the mobile wireless telephone 10 is disconnected, a call recording execution signal is generated in response to the input of the recording execution key input to the mobile wireless telephone 10 or a call recording end signal is generated in response to the input of the recording end key. A call reproduction signal is generated in response to a play key input or a call deletion signal is generated in response to the deletion key input, and a general recording signal is generated in response to the input of the recording key through the mobile wireless telephone 10 or the recording ends. Generate a general recording end signal in response to the input of the key or generate a general playback signal in response to the input of the playback key A microprocessor 20 which collectively controls overall operations required for recording / playback in response to an input of the deletion key, a voice RAM 70 storing call details and general voice, and call contents corresponding to the call recording execution signal. Recording the voice content in the voice RAM 70 and ending recording of the call content in response to the call recording end signal, reproducing the content of the call stored in the voice RAM 70 in response to the generation of the call reproduction signal, and generating the call deletion signal. Correspondingly, perform an operation necessary for deleting the contents of the call stored in the voice RAM 70, record a general voice signal in the voice RAM 70 in response to the generation of the general recording signal, and respond to the generation of the normal recording end signal. End of recording of the general voice signal and the general sound stored in the voice RAM 70 in response to the generation of the general playback signal. A digital signal processor 50 for reproducing the recording of the signal and controlling an operation required to delete the general recording in the voice RAM 70 in response to the generation of the general erasing signal, and a voice message indicating that the user is absent; It is connected between the voice prompt prompt 60 and the digital signal processor 50, the microphone MIC, the speaker SP, and simultaneously converts the voice signal to analog / digital conversion and simultaneously divides and transmits the call encoder and the received signal to digital / analog conversion. A call codec 30 comprising a call decoder for restoring a voice signal and a connection between the digital signal processor 50 and the telephone network, and when the mobile wireless telephone 10 is mounted on the cradle 80, generates a general voice signal in response to the generation of the general recording signal. Code, decode the call recording and the normal recording and Digital / analog conversion is made by the general codec 40 to restore into a voice signal.

2 is a flowchart showing a recording method according to the present invention. Referring to FIG. 2, the microprocessor 20 of FIG. 1 checks whether the call is in progress in step 200. If the call is busy in step 200, it is checked whether a recording request is input in step 210. This check is determined whether the recording execution key is input through the mobile wireless telephone 10 after the mobile wireless telephone 10 is detached from the cradle 80. As a result of the check, if a recording execution key is input, a call recording signal is generated and applied to the digital signal processor 50, and then the process proceeds to step 220. In step 220, the digital signal processor 50 stores the contents (voice signal) digitally converted by the codec 30 in response to the call recording signal in the voice RAM 70. The above corresponds to the recording process.

Thereafter, in step 230, the microprocessor 20 checks whether the recording of the call is completed. This check is determined by whether a recording end key has been input in the mobile radio telephone 10. When the recording end key is input, the microprocessor 20 generates a call recording end signal and applies it to the digital signal processor 50 to terminate the recording operation by the digital signal processor 50. The microprocessor 20 then places the digital signal processor 50 in a call waiting state. That is, the vehicle hands-free kit is made hands-free. The hands-free state is a state in which the user performs a unique operation so that the user can make a call without disconnecting the mobile wireless telephone from the cradle. Thereafter, in step 240, the microprocessor 20 checks whether a play key is input to the mobile wireless telephone 10. In other words, it is checked whether a playback request of call recording contents is input from the user. If the reproduction request of the call recording contents is input, the digital signal processor 50 reads the call recording contents stored in the voice RAM 70 and transmits them to the general codec 40 in step 250. The general codec 40 decodes it and delivers the converted voice signal to the speaker SP. This audio signal is reproduced through the speaker SP.

When the delete key is input to the mobile wireless telephone 10 in step 260, the microprocessor 20 generates a call deletion signal and applies it to the digital signal processor 50, and then proceeds to step 270. In step 270, the digital signal processor 50 deletes the call recording contents in response to the call deletion signal.

In operation 220, the microprocessor 20 checks whether a recording request is input in step 280. This check is determined whether a recording execution key is input from the mobile wireless telephone 10. If the recording execution key is input, the microprocessor 20 determines that this is a case of general voice recording and generates a general recording signal to generate the digital signal processor. 50 is applied. The above-mentioned general voice recording includes, for example, the recording of the above-mentioned call, except for the broadcast content flowing from the radio or the stories of people riding in the car. In step 290, the digital signal processor 50 records the analog / digital converted voice signal in the general codec 40 in the voice RAM 70 in response to the normal recording signal. When the recording end key is input through the mobile wireless telephone 10 in step 300, the microprocessor 20 determines that the recording of the general voice recording is completed, and causes the digital signal processor 50 to terminate the recording operation. When a playback key is input through the mobile wireless telephone 10 in step 240, the microprocessor 20 generates a general playback signal, applies it to the digital signal processor 50, and then transitions to 250. In step 250, the digital signal processor 50 reads the general recording contents from the voice RAM 70 and inputs them to the general codec 40 in response to the input of the general playback signal. The general codec 40 decodes the general recording contents, converts them into an analog form, and transfers them to the speaker SP to reproduce and output the audible sound. When the delete key is input through the mobile wireless telephone 10 in step 260, the microprocessor 20 generates a general delete signal and inputs it to the digital signal processor 50. In operation 270, the digital signal processor 50 deletes the general recording contents stored in the voice RAM 70 in response to the input of the general deletion signal.

As described above, the present invention adds a recording / playback function to the hands-free kit, thereby eliminating the need for a separate recording / playback device for general recording on a vehicle, and safely and easily making a call or general recording and playback while the vehicle is moving. There is this.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the claims, but also by those equivalent to the scope of the claims.

Claims (3)

A recording / reproducing apparatus for a vehicle hands-free kit, comprising: a mobile wireless telephone having a plurality of keys, a cradle for mounting the mobile wireless telephone, a general codec connected to a speaker and a microphone for processing a general voice signal, and a telephone line A call codec for processing a call voice signal connected to the memory, a memory for storing the general or call voice signal, and checking whether or not a mobile wireless telephone is in communication with the cradle to generate a status check signal, wherein the mobile wireless Analyzes the combined key signal inputted from the phone and recognizes it as recording execution key, recording end key, playback key, deletion key, etc., and generates a corresponding recording execution signal, recording end signal, playback signal, deletion signal, etc. According to the status check signal, the general voice signal recording is supported, but the speakerphone priority mode for limiting the recording of the call voice signal is set. A voice signal stored in the memory or recorded in a digital voice signal transmitted from the call codec or the general codec in response to the input of the recording execution signal or the recording end signal or the playback signal or the deletion signal. Read and transfer to the call codec or the general codec to play, and characterized in that it comprises a digital signal processor for deleting the call voice signal or the general voice signal recorded in the memory. The apparatus of claim 1, wherein the control unit is a microprocessor. The apparatus of claim 1, wherein the memory is a RAM.