Sony Corporation

Sony Ericsson Mobile Communications Japan, Inc.

Shigeru Imura

Masaru Sanpei

Yoichiro Sako

Takeshi Fukami

A mobile terminal device includes biometric information detecting means for detecting biometric information; encryption key generating means for generating an encryption key on the basis of the biometric information in registration; encrypting means for encrypting a predetermined personal identification number with the encryption key to generate a biometric encrypted personal identification number in the registration; encrypted personal-identification-number storing means for storing the biometric encrypted personal identification number in the registration; decryption key generating means for generating a decryption key on the basis of the detected biometric information in verification; decrypting means for decrypting the biometric encrypted personal identification number with the decryption key to reproduce the personal identification number in the verification; and personal identification number verifying means for comparing the reproduced personal identification number with the stored biometric encrypted personal identification number to perform the personal-identification-number verification.

Mobil terminal device, personal identification number verification program, and method of verifying personal identification number

A subscriber identity module (SIM) for subscriber identification configured so as to be detachably loaded on a mobile communication terminal device has a application section for storing an externally downloaded application program, a processing section (or a SAT function section) for executing this application program, a storage section for storing file administrative description, file description, and file data, and file administration section for administering these information and data. The processing section, after the downloading of the application program, executes the downloaded application program to control the file administration section. Consequently, access to the data stored in the subscriber identity module is prevented, thereby preventing the third party to access the data stored in the subscriber identity module of the lost or stolen mobile communication terminal.

Subscriber identity module and method of preventing access thereto, and mobile communication terminal device

An information signal processing function of a telephone communication terminal can be limited taking regulations applied to the other party or an input of the other party into consideration. A base station that repeats a radio wave of a call originating portable telephone terminal transmits a country code thereof to a telephone terminal. Based on a region identification code such as a state code (international number) or a country code included in information received upon origination of the call, the called terminal refers to a status table in a ROM thereof to specify presence or absence of limitations to recording of conversation during communication applied to a state or a region in which the call originating terminal is used. In accordance with the specified limitation contents, use of the conversation recording function during communication is controlled such that a warning sound generator transmits warning sound or a voice decoding section disables recording of the conversation.

Function limiting method for telephone communication terminal, telephone communication method, telephone communication terminal and repeating center equipment

A CPU and an enciphering circuit are provided in a memory card with a construction of a memory stick. Data which is inputted and outputted is enciphered and stored in a flash memory. A command system for accessing the memory stick has a public command system and a non-public command system for management. In file data which is stored in the flash memory, an access restriction, copy guard information, and encipherment and a personal identification number at the time of access can be selectively set for every file data. In those file data, a data file including hidden file data manages processes. An access right is set into the file data and accesses for reading and writing the file data are restricted in accordance with the access right. Since the data is enciphered and stored in the flash memory, the security of the data to be stored is enhanced.

Card-shaped semiconductor storage device and operation setting method of the same

A portable telephone for communicating with a base station connected to a telephone network has a communication control unit for controlling communication through the base station, a memory for storing control information for each area in which the telephone can be operated, together with a code of each area, and wherein the communication control unit includes a discriminator for discriminating the area code included in a control signal which is transmitted from the base station. The control information for the area of the area code which the discriminator has discriminated is read from the memory so that the communication control unit can make the corresponding communication control in accordance with the control information.

System and method for controlling a portable telephone according to

An IC card loading detecting apparatus utilizing an input/output terminal portion of an IC card which houses therein a central processing unit (CPU) has a ground contact (6e) and a detection sensor contact (7) provided on an interface portion (6) of a terminal equipment (4). The detection sensor contact is brought in contact with a ground terminal (2e) of an input/output terminal portion (2) of an IC card (1) after the ground contact is brought in contact with the ground terminal when the IC card is inserted into the equipment and is disconnected from the ground terminal before the ground contact is disconnected from the ground terminal when said IC card is ejected from the equipment.

IC card reader

An error correcting apparatus including a circuit for detecting error correcting modes of incoming digital information, a generator for generating a first set of syndromes for a first error correcting mode when the incoming digital information is detected as the first error correcting mode, a generator for generating a second set of syndromes for a second error correcting mode when the incoming digital information is detected as the second error correcting mode, a generator for generating quasi-syndromes for the second error correcting mode by adding an additional syndrome to the syndromes for the first error correcting mode when the incoming digital information is detected as the first error correcting mode, and an error correction circuit for applying an error correcting process to the incoming digital information based on the generated syndromes for the second error correcting mode in spite of the error correcting modes of the incoming digital information.

Error correction processing apparatus

A level indicating system adapted to provide an indication of the peak-level or the volume unit level of an input signal. The system is comprised of an amplifier to receive the signal; a first changeable time constant circuit; a second changeable time constant circuit coupled to the first time constant circuit; an indicator connected to the second time constant circuit; and a control circuit for changing the respective time constants of the first and second time constant circuits. The indicator selectively provides an indication of the peak-level of the signal or the volume unit of the signal depending upon the particular time constants of the time constant circuit.

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Tokyo, Japan

Shigeru Imura