JP2003178272A - Electronic equipment and operation control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and surely execute authentication processing by a network in a home. <P>SOLUTION: A short distance radiocommunication interface 68 executes short distance radiocommunication with the other electronic equipment for constituting a radio network. A noncontact IC device 14 executes mutual authentication processing when mutual noncontact IC devices are approached between the other electronic equipment provided in a similar noncontact IC device. The respective electronic equipment is record with profile information such as proper ID and accessing URL. The mutual authentication processing is executed by replacing and recording the profile information inherent in the mutual electronic equipment via the noncontact IC device. Communication can be executed via the short distance radiocommunication interface 68 by executing the mutual authentication processing. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device and an operation control method, and more particularly to an electronic device and an operation control method capable of easily performing authentication processing in a home network.

[0002]

2. Description of the Related Art HAVi is used as a home network.
(Home Audio Video Interoperability) is known. In this HAVi, a HAVi interface is mounted on an electronic device in a home, and a plurality of other electronic devices having the same interface are connected to the IEEE.
(Institute of Electrical and Electronics Engineer
s) Connected by 1394 high speed serial bus. Mutual authentication processing is performed between the electronic devices based on the standard, and one electronic device can control the other electronic device based on the authentication result.

However, when a home network is constructed with HAVi, all electronic equipment must have HAV.
The i interface has to be implemented, and there is a problem that the cost becomes high. Also, electronic devices must be connected to each other with a cable, for example, when a cable is laid between a room on the first floor and a room on the second floor,
The wiring process was troublesome, and in the end, it was not possible to easily build a home network.

Therefore, it is possible to construct a home network by wireless communication.

[0005]

However, when a network is constructed wirelessly, there has been a problem that it becomes difficult to perform mutual authentication processing of electronic devices to be connected to the network.

The present invention has been made in view of the above circumstances, and makes it possible to easily perform authentication processing in a network, and thus to easily construct a network at low cost. To do.

[0007]

An electronic device of the present invention is based on identification information, and an authentication means for performing mutual authentication processing with another electronic device using electromagnetic induction, and an authentication by the authentication means. Based on the result, a communication unit that communicates with another electronic device, based on information input from the other electronic device by the communication unit, an execution unit that executes a predetermined process, and in the vicinity of the authentication unit, It is characterized in that the housing of the electronic device is provided with display means for displaying recognition information for allowing the user to recognize that the electronic device is at a position where another electronic device is opposed to the electronic device.

The display means may be a mark displayed on the housing.

The electronic device of the present invention is a television receiver, and is a VCR, PDA, audio device, tuner, telephone, printer, portable audio reproducing device, refrigerator,
Or it can be either a cooler.

The electronic device of the present invention is a television receiver, and the executing means can execute a receiving process of a predetermined channel based on information from another electronic device.

The authentication means is 10 cm from the display means.
It can be arranged within the distance.

In the operation control method of the present invention, recognition information is displayed to allow a user to recognize a position to be placed when authenticating another electronic device, and when the other electronic device is placed in the vicinity of the recognition information, identification is performed. Based on the information, mutual authentication processing is performed by using electromagnetic induction with other electronic equipment, and authentication is performed.Based on the authentication result of the authentication processing, communication with other electronic equipment is performed and communication is performed. It is characterized in that a predetermined process is executed on the basis of information input from another electronic device.

In the electronic device and the operation control method of the present invention, the identification information is displayed at a position where mutual authentication processing is performed between the other electronic device and the other electronic device based on the identification information. To be done.

[0014]

1 is a block diagram of a television receiver 10, a remote controller 20, and a VCR to which the present invention is applied.
(Video Cassette Recorder) 30 and modem 40
It is a figure which shows the structural example.

The light receiving portion 13 of the television receiver 10 is
An infrared signal emitted from a slave unit such as a dedicated remote controller 20 is received. In addition, CRT (Cathode Ra
The y tube) 12 displays an image based on operation information based on a user's instruction, the state of the television receiver 10, or broadcast data broadcast from a broadcast station.

Further, the casing 10 of the television receiver 10
A contactless recognition mark 11 is displayed below the front surface of A by printing or sticking a sticker. The non-contact recognition mark 11 is an IC as shown in FIG.
(Integrated Circuit) The position where the card 50 and the contactless IC device 14 (FIG. 4 described later) that performs mutual authentication processing are arranged, in other words, at the time of mutual authentication, the user
The user is made to recognize the position where the C card 50 should be arranged. In the television receiver 10, the non-contact IC device 14 is arranged at a position within 10 cm from the display position of the non-contact recognition mark 11 (within a distance range where communication using electromagnetic induction can be reliably performed). ing.

The remote controller 20 is provided in advance in the television receiver 20 as a slave unit for performing remote control of the television receiver 20. The remote controller 20 is provided with a light emitting unit 21, and when a user operates the operation unit 22 of the remote controller 20, operation information based on a user's instruction is transmitted from the light emitting unit 21 as an infrared signal. This infrared signal is received by the light receiving unit 13 of the television receiver 10. Further, the remote controller 20 is provided with a non-contact IC device 136 as shown in FIG. 6 described later.

A non-contact recognition mark 31 is displayed on the housing 30A of the VCR 30, which is similar to the non-contact recognition mark 11 in the television receiver 10. The VCR 30 reproduces a magnetic tape accommodated in a video tape cassette (not shown) loaded from the cassette loading slot 32 or records the received video signal and audio signal on the magnetic tape according to a user's instruction. To do. The light receiving unit 33 receives an infrared signal from a dedicated remote controller (which may also serve as the remote controller 20). The display unit 34 also displays the operation based on the user's instruction and the state of the VCR 30.

The television receiver 10, the remote controller 20, and the VCR 30 are connected by the near field communication interface 68 of FIG. 4, the near field communication interface 135 of FIG. 6, or the near field communication interface 147 of FIG. It is possible to configure a wireless network and perform short-distance wireless communication based on the Bluetooth (trademark) standard within a radius of 10 m, for example. Further, the short-range wireless communication interface 41 of the modem 40 can be connected to the Internet via the network interface 42. As a result, the video data prerecorded in the VCR 30 can be transmitted to the television receiver 10 and displayed on the CRT 12, or an image of a home page on the Internet can be displayed on the CRT 12 of the television receiver 10. It is possible.
As a network protocol for short-range wireless communication, T
CP (Transmission Control Protocol) / IP (Inter
net Protocol) is used. Since this protocol is used in the Internet and there is no need to develop a dedicated protocol, an inexpensive network can be constructed.

Each device of the present invention needs to have a browser and a Web server function used for communicating via the Internet. These are, for example, Internet Explorer, Netscape Navigator, ParmScape and Apache for small machines. This can be realized by using software such as (both are trademarks) as they are. Therefore, an inexpensive system can be realized also from this point.

FIG. 2 shows an IC card 50 to which the present invention is applied.
It is a figure which shows the structural example. The IC card 50 is a contactless I
When it is brought close to an electronic device having a C device, it has a function of performing non-contact data transmission / reception with the non-contact IC device using electromagnetic induction.

That is, the non-contact IC device transmits a predetermined command to the IC card 50, and the IC card 50
The command is received and the process corresponding to the command is executed. Then, the IC card 50 transmits the response data corresponding to the processing result to the non-contact IC device.

FIG. 3 is a side sectional view showing an example of a basic internal structure of the television receiver 10 shown in FIG. The television receiver 10 includes a CRT 12, a non-contact IC device 14, and an electronic circuit 15. Within 10 cm inside the non-contact recognition mark 11, the non-contact I
The C device 14 (the antenna 94 (FIG. 5) thereof) is arranged in parallel with the non-contact recognition mark 11 (the surface of the housing 10A on which it is displayed). Non-contact IC device 1
4 performs mutual authentication processing with a non-contact IC device of a device arranged in the vicinity by wireless communication using electromagnetic induction, and when the IC card 50 is brought close to the IC card 5,
Information is exchanged with 0. Further, the television receiver 10 has an electronic circuit 15 and has a non-contact I
The C device 14 and the CRT 15 are controlled by the electronic circuit 15.

FIG. 4 is a block diagram showing a detailed configuration example of the television receiver 10 of FIG. A television (televisio) is connected to the television receiver 10 via an internal bus 61.
n) / data broadcast receiver 62, decoder 63, HDD (H
ard Disk Drive) 64, RAM (Random Access Memor)
y) 65, a CPU (Central Processing Unit) 66, and an input / output interface 67 are connected to each other. In addition to the short-range wireless communication interface 68 connected to the input / output interface 67, CR
The T12, the light receiving unit 13, and the non-contact IC device 14 are further connected.

The short-range wireless communication interface 68 is
For example, short-range wireless communication is performed with another electronic device based on a wireless communication standard such as Bluetooth.

The RAM 65 is an OS (Operating Systems) read from the HDD 64 and executed by the CPU 66.
In addition to the various application programs, parameters that appropriately change in the execution thereof and the like are appropriately stored. HD
The D64 stores an OS and application programs executed by the CPU 66, and also stores information received from the TV / data broadcast receiving device 62 or the short-range wireless communication interface 68.

The non-contact IC device 14 is connected to other electronic equipment provided with the same non-contact IC device when the non-contact IC devices are brought close to each other.
Perform mutual authentication processing. All these electronic devices have unique IDs (identification information) and access URLs (Unif
Profile information such as orm Resource Locator) is recorded in the recording section (HD in the case of the television receiver 10 of FIG. 4).
D64). Mutual authentication processing is non-contact I
This is performed by exchanging and recording profile information unique to mutual electronic devices via the C device, and by performing mutual authentication processing, it is possible to exchange information via the short-range wireless communication interface 68.

FIG. 5 is a block diagram showing a detailed configuration example of the non-contact IC device 14 of FIG. The IC 91 is a DPU (Data Processing Unit) 10 that processes data.
1. Other electronic device (for example, remote controller 20
SPU (Signal Pro) that processes data to be sent to the IC card 50) and data received from other electronic devices.
SCC (Serial Communication Controlle) for communicating with the cessing unit (102) and the input / output interface 67.
r) 103, and a memory 104 including a ROM (Read Only Memory) 111 in which information necessary for processing data is stored in advance and a RAM 112 for temporarily storing data in the process of processing.
The memory 104 is connected to each other via the bus 105.

A flash memory 92 for storing predetermined data such as data required for authentication is connected to the bus 105.

The antenna 94 is a contactless I of another electronic device.
C device antenna (for example, the IC card 50 of FIG. 8)
To communicate with the antenna 153) by electromagnetic induction.
More specifically, by monitoring the load state on the antenna 94, it is detected whether or not another electronic device (IC card 50) is placed in the vicinity, and the detected electronic device (IC card 50) is detected. Data is transmitted and received between them. Details of the transmission and reception of this data will be described later.

The demodulation circuit 95 demodulates the modulated wave (ASK (Amplitude Shift Keying) modulated wave) received via the antenna 94 and outputs the demodulated data to the SPU 102.

The SPU 102 receives data from the demodulation circuit 95 and outputs BPSK (Binary Phase Shir).
(ft Keying) demodulation processing is performed, and a command to be transmitted to the IC card 50 is subjected to BPSK modulation processing and then output to the modulation circuit 93.

The DPU 101 receives the data received from the demodulation circuit 95 via the SPU 102 and the bus 105,
The control signal input from the input / output interface 67 is received via the SCC 103 and the bus 105, and the process according to the input is executed. The DPU 101 also
The bus 105 is used to generate a command to be transmitted to another electronic device.
The data to be output to the SPU 102 via the bus or to the CPU 66 is output to the SCC 103 via the bus 105.

The modulation circuit 93 ASK-modulates the carrier wave of a predetermined frequency supplied from the oscillator 96 based on the data supplied from the SPU 102, and outputs the generated modulated wave via the antenna 94.

The SCC 103 transfers the data input from the input / output interface 67 to the D
It is supplied to the PU 101, or from the DPU 101 to the bus 10
The data input via 5 is output to the input / output interface 67.

FIG. 6 shows the remote controller 20 of FIG.
3 is a block diagram showing a detailed configuration example of the inside of FIG. A semiconductor memory (for example, a memory stick (trademark) or the like) is connected to the remote controller 20 via an internal bus 131.
132, RAM 133, CPU 134, short-range wireless communication interface 135, non-contact IC device 136,
And the operation detecting section 137 is connected, and the light emitting section 2
1 is further connected. The operation unit 22 is connected to the operation detection unit 137.

When a command from the user is input to the operation unit 22, the operation detection unit 137 detects the operation and outputs the detection result to the CPU 134. The CPU 134 controls the light emitting unit 21 or the short-range wireless communication interface 135, and outputs a signal corresponding to the detected result to the target electronic device.

Further, the CPU 134 outputs the information recorded in the RAM 133 or the semiconductor memory 132 to the short-range wireless communication interface 135 or the non-contact IC device 136 based on the user's instruction.

The short-range wireless communication interface 1
Reference numeral 35 captures data via the short-range wireless communication interface of another electronic device. The CPU 134 executes processing corresponding to the captured data.

The non-contact IC device 136 outputs the profile information such as the ID, IP address, and URL to be accessed, which are stored in advance in the semiconductor memory 132 and is unique to the remote controller 20, to the electronic device to be authenticated to be authenticated. Mutual authentication processing is performed by recording profile information unique to the electronic device.

Further, the remote controller 20 and the VCR
When mutual authentication processing is performed between the remote controller 20 and the television receiver 10 after performing the mutual authentication processing of 30, the remote controller 20 further stores profile information unique to the television receiver 10. In addition to the profile information of the remote controller 20, profile information unique to the VCR 30 stored in the remote controller 20 is transferred and recorded in the television receiver 10. Further, when the mutual authentication process between the remote controller 20 and the VCR 30 is performed again, the remote controller 2 is set in the VCR 30.
The profile peculiar to the television receiver 10 stored in 0 is also transferred and recorded.

FIG. 7 is a block diagram showing a detailed configuration example of the VCR 30 shown in FIG.

The VCR 30 has an encoder 141, a decoder 142 and an HDD 14 via an internal bus 140.
3, the display unit 144, the RAM 145, the CPU 146, the short-range wireless communication interface 147, the non-contact IC device 148, and the recording / reproducing unit 149 are connected to each other, and the light receiving unit 33 is further connected.

The CPU 146 outputs the data reproduced by the recording / reproducing unit 149 from the magnetic tape of the mounted video cassette to the encoder 141 via the internal bus 140. The encoder 141 encodes the reproduction data and outputs it to the short-range wireless communication interface 147. Further, the CPU 146 is the HDD 143 or the RAM.
The data recorded in 145 is read out based on the user's instruction and displayed on the display unit 144. The signal corresponding to the user's instruction is output from the light emitting unit or the short-range wireless communication interface of the corresponding remote controller, and taken in from the light receiving unit 33 or the short-range wireless interface 147.

The HDD 143 has an I specific to the VCR 30.
Profile information such as D and the URL to be accessed is recorded, and the CPU 146 reads the profile information unique to the VCR 30 from the HDD 143, and then transmits the profile information to a nearby electronic device via the non-contact IC device 148 to record the profile information. Let In addition, the profile information of the electronic device brought close to is received via the non-contact IC device 148 and stored in the RAM 145.

Further, by bringing the non-contact device 148 and the IC card 50 close to each other, the non-contact IC device 14
8 and the IC card 50 perform communication based on electromagnetic induction.

FIG. 8 is a block diagram showing a detailed internal configuration example of the IC card 50 shown in FIG. The IC 151 of the IC card 50 receives the modulated wave transmitted from the non-contact IC device 14 (or the non-contact IC device 136 or 148) via the antenna 153. The capacitor 152 constitutes an LC resonance circuit together with the antenna 153, and tunes (resonates) with an electromagnetic induction wave having a predetermined frequency (carrier frequency).

The ASK demodulation section 181 of the interface section 161 of the IC 151 detects and demodulates the modulated wave (ASK modulated wave) received via the antenna 153, and the demodulated data is converted into BPSK demodulation section 162 and PLL (Phase).
(Locked Loop) unit 163. The voltage regulator 182 stabilizes the signal detected by the ASK demodulator 181 and supplies it to each circuit as a DC power source. The oscillation circuit 183 of the interface unit 161 oscillates a signal having the same frequency as the data clock frequency and outputs the signal to the PLL unit 163.

From IC card 50 to non-contact IC device 1
4 (or non-contact IC device 136 or 14
When sending data to 8), the interface unit 16
The ASK modulation unit 184 of No. 1 receives the BPSK from the calculation unit 164.
Corresponding to the data supplied via the modulator 168, for example, a built-in switching element (not shown) is turned on or off, and a predetermined load is placed in parallel with the antenna 153 only when the switching element is in the on state. To connect.
As a result, the load in the direction of the antenna 153 viewed from the antenna 94 electromagnetically coupled to the antenna 153 is changed.

That is, the ASK modulator 184 ASK-modulates the modulated wave received via the antenna 153 due to the change in the load of the antenna 153 (the non-contact IC device 14 receives the data from the IC card 50). When
That is, when transmitting data to the IC card 50,
The maximum amplitude of the modulated wave that is output is constant, and this modulated wave is ASK due to fluctuations in the load of the antenna 153.
Then, the modulated component is transmitted to the non-contact IC device 14 via the antenna 153 (the terminal voltage of the antenna 94 of the non-contact IC device 14 is changed).

The PLL unit 163 generates a clock signal synchronized with the data from the data supplied from the ASK demodulation unit 181, and uses the clock signal as the BPSK demodulation unit 1
62 and BPSK modulator 168. BPSK
When the data demodulated by the ASK demodulation unit 181 is BPSK-modulated, the demodulation unit 162 performs demodulation of the data (Decoding Manchester code) according to the clock signal supplied from the PLL unit 163, and demodulated data. Is output to the calculation unit 164.

When the data supplied from the BPSK demodulation unit 162 is encrypted, the arithmetic unit 164 decrypts the data by the encryption / decryption unit 192, and then the sequencer 191 processes the data. When the data is not encrypted, the data supplied from the BPSK demodulation unit 162 is directly supplied to the sequencer 191 without passing through the encryption / decryption unit 192.

The sequencer 191 executes various processes according to the input command. That is, the sequencer 191 is, for example, an EEPROM (Electrically Erasable an
d Programmable Read Only Memory) 166 writing and reading of data, and other necessary arithmetic processing for data is performed. Further, the sequencer 191 controls access to the EEPROM 166 by performing authentication,
The management of the EEPROM 166 is executed.

The parity calculator 193 of the calculator 164 is
For example, a Reed-Solomon code is calculated as the parity from the data stored in the EEPROM 166 or the data stored in the EEPROM 166. Further, the calculation unit 164 is
After the sequencer 191 performs a predetermined process, the response data (data to be transmitted to the non-contact IC device 14) corresponding to the process is output to the BPSK modulator 168. BPS
The K modulator 168 BPSK-modulates the data supplied from the calculator 164 and outputs the modulated data to the ASK modulator 184 of the interface unit 161.

The ROM 165 stores a program for the sequencer 191 to perform processing, data necessary for executing the program, and the like. The RAM 167 temporarily stores data during the processing when the sequencer 191 performs the processing. The EEPROM 166 is a non-volatile memory, and the data (for example, the date of birth of the user, the credit card, etc.) even after the IC card 50 finishes the communication with the non-contact IC device 14 and the power supply to the IC card 50 is stopped. Number, address, name, etc.).

Next, a data transmission / reception process between the non-contact IC device 14 and the IC card 50 will be described.

The non-contact IC device 14 described with reference to FIG. 5 monitors the load state of the antenna 94 while the antenna 94 radiates a predetermined electromagnetic wave, and the IC card 50
It waits until a change in the load state due to the approach of is detected.

When the approach of the IC card 50 is detected in the non-contact IC device 14, the SPU 102 of the non-contact IC device uses the rectangular wave of a predetermined frequency as a carrier wave to transmit data to the IC card 50 (for example, IC Command corresponding to the processing to be executed by the card 50, IC
BPSK modulation is performed with the data to be written in the card 50) and the generated modulated wave (BPSK modulated signal) is output to the modulation circuit 93.

The modulation circuit 93 ASK-modulates the carrier wave output from the oscillator 96 with the input BPSK modulation signal, and the generated modulation wave (ASK modulation wave) is transmitted to the antenna 9
4 to the IC card 50.

When the transmission is not performed, the modulation circuit 93
Generates a modulated wave at, for example, the high level of the two levels of the digital signal (high level and low level).

In the IC card 50 described with reference to FIG. 8, in the LC resonance circuit composed of the antenna 153 and the capacitor 152, a part of the electromagnetic wave radiated by the antenna 94 of the non-contact IC device 14 is converted into an electric signal. The electric signal (modulated wave) is output to the interface unit 161 of the IC 151. Then, the ASK demodulation unit 181 of the interface unit 161 performs envelope detection by rectifying and smoothing the modulated wave, supplies the signal generated by the envelope detection to the voltage regulator 182, and outputs the DC component of the signal. The data signal is suppressed and extracted, and the data signal is extracted from the BPSK demodulation unit 162 and the PL.
It is output to the L unit 163.

When the voltage regulator 182 receives the signal rectified and smoothed by the ASK demodulation unit 181, the voltage regulator 182 stabilizes the signal and supplies it as a DC power source to each circuit including the arithmetic unit 64.

The BPSK demodulator 162 is the ASK demodulator 1
When the data (BPSK modulated signal) is received from 81, the data is demodulated according to the clock signal supplied from the PLL unit 163, and the demodulated data is output to the arithmetic unit 164.

When the data supplied from the BPSK demodulation unit 162 is encrypted, the arithmetic unit 164 performs encryption / decryption.
After decoding by the decoding unit 192, the data is supplied to the sequencer 191 for processing. Note that the non-contact IC device 14 waits while transmitting data having a value of 1 during this period, that is, after transmitting data to the IC card 50 and until receiving a response thereto. Therefore, during this period, the IC card 50 receives the modulated wave having the constant maximum amplitude.

When the sequencer 191 completes the processing,
The response data (data to be transmitted to the non-contact IC device 14) regarding the processing result and the like is sent to the BPSK modulator 16
Output to 8. The BPSK modulation unit 168 performs BPSK modulation on the input data, and then the interface unit 161.
To the ASK modulator 184.

Then, the ASK modulator 184 varies the load connected to both ends of the antenna 153 according to the data from the BPSK modulator 168 by using a switching element or the like, thereby receiving the modulated wave. (When the data is transmitted by the IC card 50, the maximum amplitude of the modulated wave output from the non-contact IC device 14 is constant as described above), and the ASK modulation is performed according to the data to be transmitted. The terminal voltage of the antenna 94 of the non-contact IC device 14 is fluctuated, and the data is transmitted to the non-contact IC device 14.

On the other hand, the modulation circuit 93 of the non-contact IC device 14 continues to transmit data having a value of 1 (high level) when receiving data from the IC card 50. Then, in the demodulation circuit 95, the antenna 94 electromagnetically coupled to the antenna 153 of the IC card 50.
The data transmitted by the IC card 50 is detected from the minute fluctuation (for example, several tens of microvolts) of the terminal voltage of the.

Further, in the demodulation circuit 95, the detected signal (ASK modulated wave) is amplified and demodulated by a high gain amplifier (not shown), and the resulting digital data is output to the SPU 102. The SPU 102 demodulates the input data (BPSK modulated signal) and outputs it to the DPU 101 via the bus 105. The DPU 101 is S
The data input from the PU 102 is processed, and it is determined whether to end the communication according to the processing result. Then, when it is determined to perform communication again, the non-contact IC device 14 and the IC card 5 are processed in the same manner as the above-mentioned case.
Communication is performed with 0. On the other hand, when it is determined that the communication is to be ended, the non-contact IC device 14 and the IC card 5
The communication process with 0 is terminated.

As described above, the non-contact IC device 14
Uses ASK modulation in which the modulation factor k is less than 1,
The data is transmitted to the C card 50, the IC card 50 receives the data, performs the process corresponding to the data, and returns the data corresponding to the result of the process to the non-contact IC device 14. Although not described, communication between non-contact IC devices is basically performed in the same manner. That is, the IC card 50 can only passively process an active operation from the non-contact IC device, but the non-contact IC device has an active function, so that other non-contact IC devices can be processed. , Can communicate with each other actively and passively.

Next, referring to FIGS. 9 and 10, the VCR3
0 and the authentication information registration process in the remote controller 20 will be described. The process is started when the user brings the remote controller 20 closer to the VCR 30.

First, the authentication information registration process in the VCR 30 will be described with reference to FIG. When the remote controller 20 is brought close to the VCR 30 by the operation of the user, the non-contact IC device 148 is close to the non-contact IC device 136 (for example, a distance of several centimeters).
Is detected, and the detection signal is detected by the CPU 14.
Output to 6. The user cannot usually know where the non-contact IC device 148 is arranged inside the housing 30A of the VCR 30. The distance between the remote controller 20 (the non-contact IC device 136 of the remote controller 20) and the non-contact IC device 148 needs to be sufficiently short in order to reliably perform communication by electromagnetic coupling. In the present invention, since the non-contact recognition mark 31 is displayed, the user arranges the remote controller 20 in the vicinity of the display position, so that the remote controller 20
Can be placed at a position where reliable communication can be performed with the non-contact IC device 148.

In step S11, the CPU 146
Sets the authentication mode and causes the non-contact IC device 148 to output a signal requesting transmission of profile information specific to the remote controller 20 via the internal bus 140.

Based on this request, the non-contact IC device 136 of the remote controller 20 transmits the profile information (step S3 in FIG. 10, which will be described later).
2). Therefore, in step S12, the non-contact IC device 148 receives the profile information transmitted from the remote controller 20 and supplies the profile information to the CPU 146. This profile information includes information such as the unique ID of the remote controller 20 and the URL to be accessed. The profile information is XML (eXtensib) to ensure interoperability.
le Markup Language).

In step S13, the CPU 146
Causes the RAM 145 to save the profile information of the remote controller 20. At this time, since the profile information of the remote controller 20 is recorded in the RAM 145, it is erased when the power is turned off. This makes it possible to prevent unauthorized use by other users when the electronic devices are discarded or recycled.

In step S14, the CPU 146
Transmits an OK notification indicating that the profile information has been properly saved to the remote controller 20 via the non-contact IC device 148.

In step S15, the CPU 146
Reads the profile information of the VCR 30 recorded in the HDD 143 and causes the remote controller 20 to transmit the profile information via the non-contact IC device 148. In this case, when the VCR 30 already has another device that has been subjected to the mutual authentication processing (when the profile information of the other device that has been subjected to the mutual authentication processing is recorded in the RAM 145), C
The PU 146 also transmits profile information of other devices. Also, the profile information of the VCR 30 is the HDD
Since it is recorded in advance in 143, it is not erased even when the power is turned off.

When the profile information is transmitted to the remote controller 20, the remote controller 20 sends O
K notification is sent (step S in FIG. 10 described later).
36). Therefore, the CPU 146 receives the OK notification from the remote controller 20 in step S16.

Next, referring to FIG. 10, the VCR3 of FIG.
The authentication information registration process in the remote controller 20 executed corresponding to the 0 authentication information registration process will be described. When the remote controller 20 is brought close to the VCR 30 by a user operation, the non-contact IC device 13
6 detects that the non-contact IC device 148 is arranged in the vicinity. When this detection signal is input, step S
At 31, the CPU 134 sets the authentication mode,
The profile information transmission request from the VCR 30 is received from the non-contact IC device 136 via the internal bus 131 (step S11).

In step S32, the CPU 134
Reads the profile information such as the ID unique to the remote controller 20 and the URL to be accessed, which is recorded in advance in the semiconductor memory 132, and the contactless I
It is transmitted to the VCR 30 via the C device 136. This profile information is set in step S12 as described above.
Then, it is acquired by the VCR 30. If there is another device that has already performed the mutual authentication process in the remote controller 20 (when profile information of the other device that has performed the mutual authentication process is recorded in the RAM 133), the CPU 1
34 also transmits the profile information of the other devices.
The profile information unique to the remote controller 20 is recorded in advance in the semiconductor memory 132 and is not erased even when the power is turned off.

In step S33, the CPU 134
Receives the OK notification (the notification transmitted in the process of step S14) from the VCR 30 via the non-contact IC device 136. In this OK notification, the profile information of the remote controller 20 is the RAM 145 of the VCR 30.
The remote controller 20 is notified that it has been properly saved.

In step S34, the CPU 134
Receives the profile information (the profile information transmitted in the process of step S15) from the VCR 30 via the non-contact IC device 136. At this time, the received profile information includes information such as the ID unique to the VCR 30 and the URL to be accessed. It also includes profile information of other devices that the VCR 30 has mutually authenticated.

In step S35, the CPU 134
Causes the RAM 133 to store the profile information received from the VCR 30.

In step S36, the CPU 134
Causes the VCR 30 to transmit an OK notification via the non-contact IC device 136. This OK notification notifies that the profile information of the VCR 30 has been saved in the remote controller 20.

By the processing shown in FIGS. 9 and 10, the VC
Authentication information registration processing is performed between the R30 and the remote controller 20, and the VCR 30 receives profile information unique to the remote controller 20 and profile information of other devices mutually authenticated by the remote controller 20, and the remote controller 20. The VCR30
To the VCR 30 and the profile information of the other device mutually authenticated by the VCR 30 are recorded. By performing this mutual authentication information registration, the remote controller 20, which is originally a remote controller of the television receiver 10, can play a role as a remote controller for the VCR 30. Specifically, based on the user's instruction, the CPU 134 of the remote controller 20 transmits a signal based on the user's instruction to the short-range wireless communication interface 147 of the VCR 30 via the short-range wireless communication interface 135. The CPU 146 of the VCR 30 controls each unit based on the signal received via the short-range wireless communication interface 147, and executes the process based on the command.

The authentication information registration processing as shown in FIGS. 9 and 10 is similarly performed between the remote controller 20 and the television receiver 10. Further, when the authentication information registration process is performed between the remote controller 20 and the television receiver 10 after the authentication information registration process is performed between the remote controller 20 and the VCR 30, Since the authentication information unique to the VCR 30 is also recorded, two authentication information of the remote controller 20 and the VCR 30 are registered in the television receiver 10. Further, also in the remote controller 20, the authentication information of the VCR 30 and the television receiver 10 is registered. Further, after this processing, the remote controller 20 and the VCR 30 are brought closer to each other again, so that the remote controller 2 is newly added to the VCR 30.
Authentication information unique to the television receiver 10 included in the authentication information of 0 is recorded.

By performing such processing, a relatively large and heavy electronic device such as the television receiver 10 and the VCR 30 is moved between them via the small and lightweight remote controller 20 without moving. It is possible to perform mutual authentication processing of. The devices that have completed the mutual authentication process form a wireless network, and can communicate with each other using their respective short-range wireless communication interfaces, and one can control the other.

Next, referring to FIGS. 11 and 12, the VCR
A process of reproducing the recorded program by 30 and displaying it on the television receiver 10 will be described. It should be noted that this process is started when the user operates the remote controller 20 to request the launch of the browser of the television receiver 10.

First, the processing of the television receiver 10 will be described with reference to FIG.

Upon receiving a command from the user (remote controller 20) via the short-range wireless communication interface 68, the CPU 66 starts the browser in step S51, and is registered in the television receiver 10 in step S52. Authenticated devices (devices registered as devices that make up the wireless network)
Information is read from the RAM 65 and displayed on the CRT 12. An example of the display screen at this time is shown in FIG. FIG.
In the example, a list of authenticated devices is displayed on the CRT 12. In this case, VCR (VCR30)
And the remote controller (remote controller 20) is registered. Therefore, the user is
By operating 0, either of them can be selected as the device to be controlled.

In step S53, the CPU 66
When a selection based on a user's operation is accepted via the short-range wireless communication interface 68, a device (for example, VC) selected by the user, which is recorded in the RAM 65, is recorded.
The URL of the device is read from the profile information of R30). Further, the CPU 66 accesses the read URL via the short-range wireless communication interface 68, reads the ID information unique to the television receiver 10 from the HDD 64, and transmits the read ID information.

When the ID information unique to the television receiver 10 is transmitted to the VCR 30 as the selected device,
Error from VCR 30 (step S7 in FIG. 12 described later)
3) or a URL file (step S75 in FIG. 12 described later) is transmitted. Therefore, step S
At 54, the CPU 66 determines whether an error notification has been received via the short-range wireless communication interface 68. For example, when the VCR 30 accessed by the television receiver 10 is not authenticated, an error notification is received. If it is determined that the error notification is received, the CPU 66 ends the process in step S55.

When it is determined in step S54 that the error notification has not been received, the process proceeds to step S56, and the CPU 66 causes the short-range wireless communication interface 6 to operate.
The file of the accessed URL is received via 8 and displayed on the CRT 12. An example of the display screen at this time is shown in FIG. In the example of FIG. 14, the CRT 12 has a VCR
A list of 30 operation selection screens is displayed. In the case of this example, since the recording reservation, the recorded program list, and other settings are displayed, the user can select any one of them.

In step S57, the CPU 66
A selection based on a command from the user (remote controller 20) is accepted via the short-range wireless communication interface 68. For example, if “recorded program list” is selected, the CPU 66 outputs a signal corresponding to the command (for example, a signal corresponding to the recorded program list) to the VCR 30 via the short-range wireless communication interface 68. .

When the "recorded program list" signal is transmitted to the VCR 30, the VCR 30 is processed in step S58.
From the “Recorded Program List” (see FIG.
Step S77) is transmitted. CPU 66
The data from the VCR 30 is received and the "recorded program list" data is displayed on the CRT 12. An example of the display screen at this time is shown in FIG. In the example of FIG. 15, sports news, afternoon news, and morning drama are displayed as the recorded program list, and the user can select any of them.

In step S59, the CPU 66
Program selection based on the user's command is accepted, and the program U
Access the RL. The URL of the program is the one that was received together with the “recorded program list” and recorded in the RAM 65 in step S58. For example, if “afternoon news” is selected by the user, the CPU
The 66 reads the URL of "afternoon news" from the RAM 65 and accesses it.

When the URL of the program is accessed, VCR3
Program data is transmitted from 0 (step S79 in FIG. 12, which will be described later). In step S60, the CPU 66 receives the data from the VCR 30 and CRTs the program.
12 to display.

Next, referring to FIG. 12, the VCR 3 executed corresponding to the processing of the television receiver 10 of FIG.
The process of 0 will be described.

In step S71, C of the VCR 30
The PU 146 is a short-range wireless communication interface 147.
When the ID information unique to the television receiver 10 (the ID information transmitted in the process of step S53) is received via, the authentication information recorded in the RAM 145 is read out in step S72 and the accessed television is accessed. It is determined whether the receiver 10 has been authenticated. If it is determined that the authentication has not been completed, step S73
At, the CPU 146 notifies the television receiver 10 of an error via the short-range wireless communication interface 147. At this time, in step S74, C
The PU 146 ends the process.

If it is determined in step S72 that the accessing television receiver 10 has been authenticated, the process proceeds to step S75, in which the CPU 146 sets the CG.
I (Common Gateway Interface) is used to create an XML (or HTML (Hyper Text Markup Language)) file, and the file is transmitted as a URL file (image file shown in FIG. 14) accessed by the television receiver 10. To do.

In step S76, the CPU 146 sends a signal (step S5) corresponding to the instruction input by the user via the short-range wireless communication interface 147.
The signal output by the process 7) is received by the television receiver 10
To receive from. The CPU 146 activates the CGI based on the input signal and executes the processing corresponding to the input signal. In the case of the example in FIG. 14, the data of the “recorded program list” is read from the HDD 143.

In step S77, the CPU 146
Via the short range wireless communication interface 147,
The read data (data of “recorded program list”) is output to the television receiver 10. At this time, the data of the "recorded program list" includes URLs of programs corresponding to sports news, afternoon drama, and morning drama.

When the "recorded program list" data is transmitted to the television receiver 10, the television receiver 10 accesses the URL of the program as described above (step S59). Therefore, step S
At 78, the CPU 146 controls the television receiver 1
Access from 0 to the program URL is accepted.

In step S79, the CPU 146
Is the accessed program data ("Afternoon News")
Is transmitted to the television receiver 10.

By repeating the above processing, a display corresponding to the processing is displayed on the CRT 12 of the television receiver 10. For example, in the display example of FIG. 14, when the user selects “recording reservation”, the short-range wireless communication interface 68 transmits a signal corresponding to the operation to the VCR 30. After that, when the corresponding data transmitted from the VCR 30 is received, the CPU 66
Causes the CRT 12 to display a recording reservation operation screen.

Next, the broadcast receiving processing of the television receiver 10 will be described with reference to FIG. The television receiver 10 receives information on a program to be broadcast in advance (information such as age restrictions and broadcast time) via the short-range wireless communication interface 68 or the TV / data broadcast receiving unit 62, and records it in the HDD 64. ing.
Note that this processing is performed by the user by the remote controller 20.
It is started when the channel of the television receiver 10 is selected by operating the.

In step S91, the CPU 66
When the signal corresponding to the channel selection by the user operation is output through the light emitting unit 21 of the remote controller 20 or the short-range wireless communication interface 135, the signal is output through the light receiving unit 13 or the short-range wireless communication interface 68. To receive.

At step S92, the CPU 66
Information on the program corresponding to the selected channel is read from the HDD 64, and it is determined whether there is age restriction.
If it is determined that there is no age restriction, the process is step S9.
Proceed to 7.

If it is determined in step S92 that there is an age restriction, the process proceeds to step S93 and C
PU66 reads the message from HDD64, C
Display on RT12. An example of the display screen at this time is shown in FIG.
Shown in. In the example of FIG. 17, a message “The selected channel has an age limit” and a message “Please bring the IC card closer to star” are displayed. The mark of ☆ is a mark that allows the user to intuitively come up with the non-contact recognition mark 11. The user follows the message and holds the IC card 50
An operation of bringing the mark (non-contact recognition mark 11) close is performed.

When the user brings the IC card 50 close to the non-contact recognition mark 11, the non-contact recognition mark 11
Non-contact IC device 14 disposed near the inside of the
Communicates with the IC card 50 to read out necessary information.

In step S94, the DPU 101 of the non-contact IC device 14 has the EEPROM 1 of the IC card 50.
The date of birth recorded in 66 is read and output to the SCC 103 via the bus 91. The SCC 103 outputs the received information (date of birth) to the CPU 66 via the input / output interface 67. CPU 66 is a non-contact I
The age of the user who is using the IC card 50 is calculated based on the information (date of birth) input from the C device 14 (SCC 103).

In step S95, the CPU 66
It is determined whether or not the calculated age of the user is within the age limit range. If it is determined that the age limit is not within the range, the CPU 66 determines in step S96 that the CRT1
After displaying an error message (for example, an error message such as “out of age limit range. Program cannot be displayed”) in 2, the process ends.

If it is determined in step 95 that the age limit is not met, or in step S92,
When it is determined that there is no age limit, in step S97, the CPU 66 causes the TV / data broadcast receiving unit 62 to receive the program data and causes the CRT 12 to display an image based on the program.

Next, referring to FIG. 17, television shopping in the television receiver 10 will be described. The television receiver 10 is connected to the Internet (not shown) via the near field communication interface 68, the near field communication interface 41 of the modem 40, and the network interface 42. The TV / data broadcast receiving unit 62 of the television receiver 10 receives the short-range wireless communication interface 68,
Information necessary for TV shopping (such as product charges and contact information) is received and recorded in the HDD 64. In this process, the user operates the remote controller 20 to instruct to receive the TV shopping program,
It starts when the image of the program is displayed on the CRT 12.

In step S111, the CPU 66
Determines whether information based on the selection of the product (number, quantity, etc. of the product to be purchased) has been input. When it is determined that the information based on the selection of the product is not input, the CPU
66 waits until it is input.

If it is determined in step S111 that the information based on the selection of the product has been input, the CPU 66
In step S112, it is determined whether or not a command to purchase a product has been input from the user. If it is determined that the product purchase command has not been input, the CPU 6
6 ends the process.

If it is determined in step S112 that the user has instructed to purchase the product, step S11
3, the CPU 66 causes the CRT 12 to display the IC card 5
A message requesting the presentation of 0 and the number and price of the purchased products are displayed. For example, "I will pay.
The item number, quantity, and price are as follows. Please show your IC card near the ☆ mark. A message such as “” is displayed on the CRT 12. According to this message, the user removes the IC card 50 from the contactless recognition mark 11
Place it in the vicinity. IC card 50 by user operation
When is displayed, the non-contact IC device 14 reads information necessary for processing (information such as address, name, and credit card number) from the IC card 50. This process is similar to the process of step S94 in FIG.

In step S114, the CPU 66
Is the information of the store that is recorded in the HDD 64 in advance, and the user information (information such as the product to be purchased, the number, the address, the name, the number of the credit card, etc.) fetched via the non-contact IC device 14 is read. , The short-distance wireless interface 68, the short-distance wireless communication interface 41 of the modem 40, the network interface 42, and the Internet, to the store.

When the store receives the user information to purchase and the purchase information via the Internet, the store arranges to deliver the ordered product to the user's address based on the received information, and at the same time, stores the credit card information. Perform the procedure to withdraw a specified amount from your account.

As described above, the television receiver 10,
By providing the remote controller 20 and the VCR 30 with a short-range wireless communication interface and a non-contact IC device, it becomes possible to easily build a home network. In addition, non-contact IC device and I
Since information can be exchanged between C cards, it is possible to exchange information that requires security and identify the user with an IC card.

Further, for example, the television receiver 10
When it is desired to make the setting for each user, since the user can be authenticated only by bringing the IC card 50 close to the contactless recognition mark 11 of the television receiver 10, the setting corresponding to each user can be easily performed. It becomes possible.

Further, since the non-contact IC card is used, high security and easy mutual authentication processing can be performed.

[0122] Note that, as the electronic devices that compose the wireless network, there are PDs other than television receivers and VCRs.
Various household electronic devices such as A, mobile phones, audio devices, tuners, printers, portable audio playback devices represented by Walkman (trademark), refrigerators, coolers, and the like can be adopted.

[0123]

As described above, according to the electronic device and the operation control method of the present invention, it is possible to easily and surely perform the authentication process and to construct a low-cost home network.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration example of an external appearance of an electronic device to which the present invention has been applied.

FIG. 2 is a diagram showing an example of an external configuration of an IC card to which the present invention is applied.

FIG. 3 is a side sectional view showing a configuration example of the television receiver of FIG.

FIG. 4 is a block diagram showing an example of the internal configuration of the television receiver of FIG.

5 is a block diagram showing an internal configuration example of the non-contact IC device of FIG.

6 is a block diagram showing an internal configuration example of the remote controller of FIG. 1. FIG.

FIG. 7 is a block diagram showing an example of the internal configuration of the VCR shown in FIG.

8 is a block diagram showing an internal configuration example of the IC card of FIG.

9 is a flowchart illustrating an authentication information registration process of the VCR of FIG.

10 is a flowchart illustrating an authentication information registration process of the remote controller of FIG.

11 is a flowchart illustrating a process of displaying a recorded program of a VCR on the television receiver of FIG.

FIG. 12 is a flowchart illustrating a process of playing a recorded program of the VCR shown in FIG.

13 is a diagram showing an example of a display screen of the television receiver of FIG.

FIG. 14 is a diagram showing an example of a display screen of the television receiver of FIG.

15 is a diagram showing an example of a display screen of the television receiver of FIG.

16 is a flowchart illustrating a broadcast receiving process of the television receiver of FIG.

17 is a diagram showing an example of a display screen of the television receiver shown in FIG.

18 is a flowchart illustrating a television shopping process of the television receiver of FIG.

[Explanation of symbols]

10 television receiver, 11 non-contact recognition mark, 13 light receiving part, 14 non-contact IC device, 1
5 electronic circuits, 30 VCR, 31 non-contact recognition mark, 33 light receiving part, 40 modem, 41 short-range wireless communication interface, 42 network interface, 50 IC card, 62 TV / data broadcasting receiving part, 64 HDD, 65 RAM,
66 CPU, 68 short-range wireless communication interface,
135 Near Field Communication Interface, 136
Non-contact IC device, 147 Short-range wireless communication interface, 148 Non-contact IC device

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Claims (6)

[Claims] 1. An authentication unit that performs mutual authentication processing with another electronic device by using electromagnetic induction based on identification information, and the other electronic device based on an authentication result by the authentication unit. A communication means for communicating with the electronic device, an execution means for executing a predetermined process based on information input from the other electronic device by the communication device, and a housing of the electronic device in the vicinity of the authentication means. To
An electronic device, comprising: a display unit that displays recognition information that allows the user to recognize that the position is that where the other electronic device is arranged to face each other. 2. The electronic device according to claim 1, wherein the display means is a mark displayed on the housing. 3. The electronic device is a television receiver,
VCR, PDA, audio equipment, tuner, telephone,
The electronic device according to claim 1, which is one of a printer, a portable audio player, a refrigerator, and a cooler. 4. The electronic device is a television receiver, and the executing means executes a receiving process of a predetermined channel based on information from the other electronic device. The electronic device according to 1. 5. The authenticating means includes a means for displaying from the displaying means.
The electronic device according to claim 1, wherein the electronic device is arranged at a distance within cm. 6. An operation control method for an electronic device having a function of communicating with another electronic device, wherein recognition information is displayed to allow a user to recognize a position to be arranged when authenticating the other electronic device. When a device is arranged near the recognition information, based on the identification information, between the other electronic device,
Authenticate by performing mutual authentication processing using electromagnetic induction, based on the authentication result by the processing of the authentication, communicate with the other electronic device, to the information input from the other electronic device by the communication process. An operation control method characterized by executing a predetermined process based on the above.