KR20040110766A - Toy wireless phone - Google Patents

Abstract

PURPOSE: A toy wireless telephone is provided to realize real call conversation with the other party located within a short distance by using a free frequency band. CONSTITUTION: A control unit(101) controls a system in general. A display unit(103) displays desired information. A key input unit(108) is installed to input keys. A memory(102) stores telephone numbers and voice information. A transmitting and receiving unit(104) transmits voice or data to a terminal of another person, and receives voice or data from the terminal of another person. A microphone(106) is installed to input a voice of a user. A speaker(107) is installed to output embedded voice data or a voice from the outside. The control unit(101) outputs DTMF tone stored in the memory(102) through the speaker(107) when a user inputs keys. The control unit(101) outputs a bell sound stored in the memory(102) through the speaker(107) when the terminal of another person calls.

Description

Toy Cordless Phone {TOY WIRELESS PHONE}

The present invention relates to a toy telephone, and more particularly, to a toy telephone capable of mutual calling.

Recently, with the development of the wireless telephone field, most people possess a wireless telephone, and thus, curiosity about the wireless telephone is increasing among infants and preschoolers, and toys having a wireless telephone form have been mass produced to satisfy this problem. However, such a toy phone does not have a real function but has a form of a general wireless phone, and simulates only some functions such as a ringtone and a key button input sound. These products may be of interest to infants under 1 to 2 years of age, but to older children, they get tired quickly because they don't actually work on their phones. Thus, there is a need for a product that allows the same or similar wireless call to a cordless phone as possible while giving the same usability as a recent cordless phone.

On the other hand, in recent years, a variety of products using a variety of technologies for preventing the loss of children have been produced. For example, in Patent Publication No. 2002-48170 (hereinafter, referred to as a prior art), an alarm is automatically generated when communication with an opposite terminal is lost using Bluetooth. However, in the prior art, even if an alarm occurs automatically, the counterpart terminal is in a disconnected state. Therefore, if the counterpart's position is not known correctly, it does not help to find a lost child at all. In the prior art, alternatively, the distance may be determined by measuring the electric field strength from the counterpart terminal, and a configuration is disclosed in which an alarm is issued to all the main terminals of the user of the counterpart terminal if the distance is deviated before the communication is interrupted. have.

However, the conventional technology is not only because it generates an alarm when the distance between the two terminals fell by more than a certain interval, there is no separate function such as voice call between the terminal is limited in use, and the toy function for children is not disclosed.

Therefore, the present invention was created in order to simultaneously implement the function of a toy and the function of a real wireless call as described above, and implements the same functions and interfaces as a general wireless phone in a terminal, allowing children to use 1: 1 radios. Yet it aims to make people feel the same feeling as cordless phones used by adults.

In addition, the present invention provides a toy telephone that enables a telephone call without a separate fixed device using a unique number (ID) obtained by scanning the other terminal around the communication range within the range or a unique number stored in advance (ID) It aims to do it.

In addition, an object of the present invention is to prevent a child by performing a specific operation when the distance between the terminals more than a certain interval.

1 is a block diagram of a toy telephone according to the present invention.

Figure 2 is a block diagram of the internal functional block of the Bluetooth-type toy telephone according to the first embodiment of the present invention.

3 is an internal configuration diagram of a flash memory according to the first embodiment of the present invention.

4 is an internal functional block diagram of an analog toy phone according to a second embodiment of the present invention;

In order to achieve the above object, a toy telephone capable of 1: 1 communication without a repeater and another person according to the present invention comprises: a control means for controlling the overall system; Display means for displaying the desired information; Key input means for key input of a user; Storage means for storing telephone number and voice information; Transmitting means for transmitting voice or data to a terminal of another person; Receiving means for receiving voice or data from a terminal of another person; A microphone into which a voice of a user is input; A speaker for outputting built-in voice data or voice from outside; An antenna, wherein the control means outputs a DTMF tone stored in the storage means through a speaker when a user inputs a key, and outputs a ring tone stored in the storage means through a speaker when calling from a terminal of another user; It is done.

In addition, the transmission and reception method is characterized by including an analog method and a digital method.

In addition, the digital transmission and reception method is characterized in that it comprises a Bluetooth method and a wireless LAN method.

The apparatus may further include an anti-loan function that automatically connects to a corresponding terminal or hears a selected warning sound when the communication sensitivity is low.

In addition, game software is stored in the storage means, and the game can be performed using the control means.

In addition, the game function is characterized in that the play by the network means using the transmitting means and the receiving means.

A toy telephone of a first embodiment according to the present invention comprises an antenna; A microphone for converting and outputting a user's voice into an electrical signal; A speaker for outputting a received voice and ring tone, a key input tone, and a call waiting sound; A keypad having a plurality of number keys and function keys to output key values input by the user; An LCD module for displaying a provided display signal on a screen; A Bluetooth module that embeds firmware for managing short-range wireless communication with another Bluetooth communication device according to the Bluetooth wireless communication protocol and transmits and receives voice signals and data to and from another Bluetooth communication device through the antenna; A codec for converting an analog voice signal output from the microphone into a digital signal and providing the same to the Bluetooth module or vice versa by converting a digital signal received from the Bluetooth module into an analog voice signal and providing the same to the speaker; A micro control unit (MCU) for providing a display signal to the LCD module, processing an output signal of the keypad, and controlling data communication with a computer through an I / O interface; And a flash memory storing an application program of the microcontrol unit (MCU) and an identification number, a phone number, and voice information of the Bluetooth module.

The flash memory may define an identification number and an application program of the Bluetooth module as a non-writable area, and define the phone number and voice information as a read / write area.

In addition, the wireless communication method of the first and second Bluetooth-type toy phone to which a unique number (ID) is assigned in accordance with the present invention is the second Bluetooth-type toy that the user of the first Bluetooth-type toy phone wants to call In response to instructing a call connection to a telephone, in response to the first Bluetooth toy telephone, wirelessly transmitting a paging signal including an ID to the second Bluetooth toy telephone; In response to the paging signal, wirelessly transmitting, by the second Bluetooth-type toy telephone, a paging response signal including its own ID; A step of wirelessly transmitting, by the first Bluetooth toy phone which has received the paging response signal, its own ID and clock information for clock synchronization; And a unique number (ID) of the first Bluetooth-type toy telephone and a second Bluetooth-type toy telephone having received the clock information at the same clock as the clock information. ) By establishing a wireless connection for establishing a communication connection between the first and the second Bluetooth toy phone.

In addition, in order to collect a unique number (ID) of a Bluetooth communication toy phone of the surrounding communication, in response to a user's scanning instructions, at least one or more second Bluetooth communication devices of which the first Bluetooth toy phone exists within a communication range. Wirelessly transmitting an inquiry signal for scanning a unique number (ID) of a toy telephone; Receiving wirelessly the ID number of the second Bluetooth-type toy telephones in response to the inquiry signal; And storing the received ID list in the internal storage means of the first Bluetooth toy phone and displaying the ID list on the display screen.

As a method of implementing a toy phone according to the present invention, an analog method using a living radio frequency and a digital method using a Bluetooth module are possible.

First, with reference to FIG. 1, the basic structure of the toy telephone which concerns on this invention is shown. 1, the toy telephone of the present invention is a control unit 101, a memory 102, a display 103, a transmission and reception unit 104, a microphone 106, a speaker 107, a keypad 108, and It is configured to include an antenna (110). A general transmission / reception scheme will be described in detail below. The memory 102 is a conventional wireless device suitable for each situation when a user inputs a specific telephone number through a keypad, or when a call is received from an external person and when a call is attempted by another person. It stores a variety of notes so that you can hear the different sounds that are implemented in a phone. In addition, the control unit 101 according to the present invention can store various data stored in the memory 102, for example, when a user presses each key through a keypad, when a call comes from outside, and when a call is attempted to another person. It is programmed to play the sound in a preset way.

For the embodiment of the toy telephone according to the invention, the following describes the Bluetooth scheme first, followed by the analog scheme.

Figure 2 shows the configuration of the internal functional block of the toy phone of the Bluetooth system according to the present invention. According to FIG. 2, a Bluetooth-type toy telephone includes a keypad 202 having a plurality of number keys and function keys around a microcontrol unit 201 and outputting key values input by a user; An LCD module 203 for displaying a provided display signal on a screen; The antenna 210 is connected, and built-in firmware that manages short-range wireless communication with other Bluetooth communication devices according to the Bluetooth wireless communication protocol, and voices in a frequency-hopping manner through the antenna 210 with another Bluetooth communication device through the 2.4 GHz band. A Bluetooth module 204 for wirelessly transmitting and receiving data; Flash memory 205 for storing application information of the microcontrol unit (MCU) 201 and necessary information such as identification number (ID) and voice information of the Bluetooth module 204 is connected to the microcontrol unit 201, respectively. The Bluetooth module 204 is connected to a codec 208 to which the microphone 206 and the speaker 207 are connected, and the codec 208 converts an analog voice signal output from the microphone 210 into a digital signal to convert the Bluetooth module 204 into a Bluetooth module 204. Or convert the digital signal received from the Bluetooth module 204 into an analog voice signal and provide it to the speaker 207. The micro control unit (MCU) 201 provides a display signal to the LCD module 203, processes the output signal of the keypad 202, and provides an I / O interface 209 such as a PS / 2 port, a USB port, or an RS232 port. Connect with external device to control data communication.

3 illustrates an internal structure of the flash memory 205. The flash memory for implementing the toy phone according to the present invention includes an area in which firmware is stored, an area in which a Bluetooth module ID is stored, and an area in which voice information is stored. The voice information basically includes voice information about a key input sound to be expressed when a key is pressed through the keypad 202, voice information about a call waiting sound when a call is made to another toy phone, and from another toy phone. Contains voice information about the ringtone that is expressed when the call is called. In addition, the Bluetooth module ID stores its ID and the Bluetooth module ID of another toy phone that can be input. As shown in the figure, the firmware and its Bluetooth module ID are not deleteable and can only be read (Read Only), and the Bluetooth module ID and voice information of others can be updated (Read / Write).

The initial connection procedure for communication connection between two Bluetooth-type toy telephones is performed through a unique number (ID) assigned to each terminal. Each terminal embeds a unique number (ID) of another terminal in an internal flash memory 116. When the user instructs to display the stored unique number through the keypad 202 of the terminal, the unique number list embedded in the flash memory 205 is read by the MCU 201 and displayed on the LCD module 203. When the user operates the keypad 202 and selects a unique number of a terminal to be called from the displayed unique number list to instruct a call connection, the MCU 201 of the calling terminal recognizes this and communicates through the Bluetooth module 204. A paging signal containing a unique number of a receiving terminal is transmitted wirelessly.

The receiving terminal may receive the paging signal if it is located within a communication range of approximately 10m to 100m. The MCU 201 of the receiving terminal receives the paging signal of the Bluetooth module 204 and compares its own number stored in the flash memory 205 with the unique number contained therein to determine whether it is a paging signal for itself. Check it.

If it is determined that the user is paging, the receiving terminal sends a paging response signal containing its own number through the Bluetooth module 204 to inform the calling terminal that it is within the communication range.

Receiving the paging response signal, the calling terminal now transmits a radio signal carrying its own ID and clock information for clock synchronization to the receiving terminal in order to enable actual communication. The terminal wirelessly transmits a unique number (ID) to the calling terminal at the same clock as the received clock information, so that both terminals establish a communication relationship with the same clock, thereby enabling normal communication.

If the calling terminal is to communicate with the other terminal other than the terminal having the unique number stored in the flash memory 205, it searches for and collects the unique number of the terminal desired to communicate prior to the connection procedure. The procedure must be preceded.

In order to collect a unique number (ID) of a nearby Bluetooth communication terminal, the user first presses a scan button on the keypad 202 of the calling terminal to retrieve a unique number of other Bluetooth communication devices existing within the communication range from the user. To indicate. In response to this indication, the MCU 201 wirelessly transmits an inquiry signal for scanning a unique number (ID) of other Bluetooth terminals via the Bluetooth module 204. And the other Bluetooth terminal around the receiving this inquiry signal transmits a response signal containing its own number and clock information for the response. When the calling terminal receives a response signal from another Bluetooth terminal in the vicinity, the MCU 201 stores the received ID number in the flash memory 205 and displays it on the LCD module 203 to allow the user. It allows you to get information about nearby Bluetooth handsets that are currently within your coverage.

In addition, in the Bluetooth method, since the transmitted and received signals are digital data, text may be transmitted and received. In this case, the sender toy terminal may transmit a text message to the receiver toy terminal using a text input (SMS) input interface of a conventional wireless telephone, and the receiver may receive the text message.

In the above example, only the Bluetooth method of the digital method has been described, but it is obvious that the wireless LAN method may be applied in the same manner.

4 is a diagram illustrating a circuit of a wireless communication device according to the present invention. In the figure, the antenna 10, the duplexer 20, the filter and amplifier 30, the mixer 31, the local oscillator 32, the demodulator 33, the receive tone squelch circuit 34, the audio signal amplification Unit 35, speaker 36, transmit modulator 40, transmit tone squelch circuit 44, keypad 51, display 52, microphone 54, control unit 60, memory 61 It is configured to include).

The filter and amplification unit 30 is composed of a band filter and an amplifier to amplify the received information signal, which is induced in the antenna 10 and passed through the duplexer unit 20, and filters only a required band. The reception signal passing through the filter and the amplification unit 30 is configured to be mixed with the phase synchronization signal output from the local oscillator 32 and output. The tone squelch circuit 34 is configured to generate a voice signal by removing the tone squelch frequency from the signal output from the demodulator 33, and the transmit tone squelch circuit 44 synthesizes the tone squelch frequency with a microphone or a transmission circuit. To generate a transmission modulated signal and send it to the transmission modulator 40. The audio signal is provided to the audio amplifier 35 to output audio through the speaker 36. When the control unit 60 converts the display unit 52 for displaying the code input from the keypad 62 and the code data input to the keypad 62, the data corresponding to the transmission / reception frequency and the tone squelch frequency are coded so as to code a predetermined address. It consists of the memory part 61 stored in the area | region.

The operation of the wireless communication device having the above configuration will be described with reference to the accompanying drawings.

First, different channel frequencies and tone squelches are stored for each specific address in the memory unit 61 of the wireless communicator. For example, Korea has 25 channel frequencies and assigns any number from 00 to 99 as a unique number of two digits corresponding to the channel frequency and stores this table in the memory of the wireless communicator in the form of a lookup table. Just do it. In addition, since the tone squelch of the CTCSS method has a total of 40 tone frequencies, it is assigned to any one of 000 to 999 as a unique number of three digits corresponding to each tone frequency. The setting of a channel or the like using such a code is a method known in the art as an example for implementing the present invention.

The numeric keypad corresponding to the channel frequency and tone frequency is input to the memory unit 30 in the keypad 51. At this time, when the code is input from the keypad 51, the key data corresponding to the key input stored in the memory unit 61 is read out to generate a sound associated with the DTMF tone through the audio amplifier 35 and the speaker 36. Subsequently, when the transmission mode is selected, that is, when the SEND key is pressed, the controller 20 recognizes, converts and sets the frequency channel and tone frequency corresponding to the input number with reference to the memory unit 30, and performs transmission processing. That is, the input signal is transmitted through the duplexer 20 and the antenna 10. At this time, the control unit 60 reads the voice data corresponding to the call waiting sound from the memory unit 61 until the receiving side answers the call, and through the audio amplifying unit 35 and the speaker 36 of the general wireless telephone. Generates a tone reminiscent of a call waiting sound.

When the receiving side is called, the control unit 60 reads the voice data corresponding to the designated ring tone from the memory unit 61, and the tone reminds the ring tone of the general wireless telephone through the audio amplifier 35 and the speaker 36. Occurs.

The analog and digital toy phones described above with reference to FIGS. 1 to 4 may implement the anti-lost function based on the communication reachable distance, in addition to the above-described functions of wireless communication. That is, in the case of the Bluetooth-type toy telephone, when the generated radio wave intensity decreases, the packet error increases, and thus the data rate decreases. In this case, a voice (eg, a parent's voice) pre-stored in the flash memory may be played or an opposite terminal may be automatically connected. In this case, in order to automatically connect with the opposite terminal before the communication reach distance, the terminal has a button for setting the anti-lost mode, and in this case, the opposite terminal (child possession) has a radio wave lower than the normal radio wave intensity in a period of 1 to 2 seconds. If the arrival rate is lowered, it is possible to be connected to the other side by a normal radio wave.

In addition, the configuration of the toy phone includes a flash memory and an MCU, allowing easy game embedding.

In addition, in the case of a digital toy phone, since data communication, character input and transmission (SMS transmission and reception) are possible by utilizing certain software. In this regard, a text input system of a conventional cellular phone can be used, and the reception side can also receive text in the same manner.

Accordingly, the toy cordless telephone according to the present invention may be used without using commercial frequency bands (for example, 800 MHz and 1.7-1.8 GHz) used by existing cordless telephones having the same form and the same external functions as the conventional cordless telephones. For example, by utilizing a free frequency band, such as the 440MHz band or 2.400-2.483GHz band (Bluetooth band), there is an advantage that you can talk to the other party in the same distance as a normal cordless phone.

In addition, the toy cordless telephone according to the present invention has the effect of being able to be used for a variety of uses beyond the simple toy, the anti-lost function, the game function and the SMS transmission function is added.

Claims (10)

In the toy telephone which can 1: 1 communication with another person without a repeater, Control means for controlling the overall system; Display means for displaying the desired information; Key input means for key input of a user; Storage means for storing telephone number and voice information; Transmitting means for transmitting voice or data to a terminal of another person; Receiving means for receiving voice or data from a terminal of another person; A microphone into which a voice of a user is input; A speaker for outputting built-in voice data or voice from outside; antenna The control means outputs a DTMF tone stored in the storage means through a speaker when a user inputs a key, and outputs a ring tone stored in the storage means through a speaker when a call is made from a terminal of another user. Toy telephone. The toy telephone according to claim 1, wherein the transmission and reception methods include analog and digital methods. The toy telephone according to claim 2, wherein the digital transmission and reception method includes a Bluetooth method and a WLAN method. The toy telephone according to claim 1, further comprising an anti-loan function that automatically connects to a corresponding terminal when the communication sensitivity decreases, or that plays a selected warning sound. The toy telephone according to claim 1, wherein game software is stored in said storage means, and a game is possible using said control means. 6. The toy telephone according to claim 5, wherein the game function is playable in a network manner using the transmitting means and the receiving means. antenna; A microphone for converting and outputting a user's voice into an electrical signal; A speaker for outputting a received voice and ring tone, a key input tone, and a call waiting sound; A keypad having a plurality of number keys and function keys to output key values input by the user; An LCD module for displaying a provided display signal on a screen; A Bluetooth module that embeds firmware for managing short-range wireless communication with another Bluetooth communication device according to the Bluetooth wireless communication protocol and transmits and receives voice signals and data to and from another Bluetooth communication device through the antenna; A codec for converting an analog voice signal output from the microphone into a digital signal and providing the same to the Bluetooth module or vice versa by converting a digital signal received from the Bluetooth module into an analog voice signal and providing the same to the speaker; A micro control unit (MCU) for providing a display signal to the LCD module, processing an output signal of the keypad, and controlling data communication with a computer through an I / O interface; And Flash memory for storing the application program of the microcontrol unit (MCU) and the identification number, phone number and voice information of the Bluetooth module Bluetooth-type toy telephone comprising a portable communication terminal having a. The toy of claim 7, wherein the flash memory defines an identification number and an application program of the Bluetooth module as a non-writable area, and the phone number and voice information are defined as a read / write area. cellphone. In the wireless communication method of the first and second Bluetooth-type toy telephones assigned a unique number (ID), When the user of the first Bluetooth-type toy telephone instructs a call connection to the second Bluetooth-type toy telephone to make a call, the first Bluetooth-type toy telephone is unique to the second Bluetooth-type toy telephone in response. Wirelessly transmitting a paging signal containing a number (ID); In response to the paging signal, wirelessly transmitting, by the second Bluetooth-type toy telephone, a paging response signal including its own ID; A step of wirelessly transmitting, by the first Bluetooth toy phone which has received the paging response signal, its own ID and clock information for clock synchronization; And The second Bluetooth toy phone having received the ID and clock information of the first Bluetooth toy phone has the same clock as the clock information, and the ID of the first Bluetooth toy phone. Wireless communication method between the toy phone of the blue pitcher type, characterized in that for establishing the initial connection for the communication connection between the first and the second Bluetooth-type toy phone by performing a step of transmitting wirelessly. 10. The method of claim 9, in order to collect a unique number (ID) of a peripheral communication-enabled Bluetooth toy phone, Wirelessly transmitting an inquiry signal for scanning a unique number (ID) of at least one second Bluetooth-type toy telephone in which the first Bluetooth-type toy telephone is within a communication range in response to a scanning instruction of the user; Receiving wirelessly the ID number of the second Bluetooth-type toy telephones in response to the inquiry signal; And And storing the received list of unique numbers in an internal storage means of the first Bluetooth toy phone and displaying the ID list on a display screen.