Patents by Inventor Masao Nonaka

Masao Nonaka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120178367
    Abstract: An NFC device according to the present invention includes the following units. An antenna unit receives radio waves from a reader/writer by NFC. A first power source unit generates power from the radio waves. A second power source unit is a drive power source. A power-supply state holding unit holds information indicating a power-supply state of the second power source unit. An NFC unit performs NFC via the antenna unit to transmit the information indicating the power-supply state of the second power source unit. A power source switch unit switches the second power source unit to the first power source unit according to the power-supply state of the second power source unit, in order to supply power to activate at least the NFC unit and the power-supply state holding unit.
    Type: Application
    Filed: July 22, 2011
    Publication date: July 12, 2012
    Inventors: Michihiro Matsumoto, Mitsuaki Oshima, Masaru Yamaoka, Shohji Ohtsubo, Masao Nonaka
  • Publication number: 20120164944
    Abstract: A terminal apparatus (M101) includes a terminal unit (M201) and a near-field communication unit (M107). The terminal unit (M201) includes a main memory (M106) that stores operation history information of the terminal apparatus (M101) and a controller (M105). The near-field communication unit (M107) includes a communication control unit (M216) that performs near-field communication with the mobile apparatus (M102) and a near-field communication memory (M215). The controller (M105) stores, in the near-field in communication memory (M215), at least a part of the operation history information stored in the main memory (M106) when a malfunction of the terminal unit (M201) is detected, and the communication control unit (M216) transmits the operation history information stored in the near-field communication memory (M215) is by near-field communication to the mobile apparatus (M102), in accordance with a request from the mobile apparatus (M102).
    Type: Application
    Filed: June 17, 2011
    Publication date: June 28, 2012
    Inventors: Masaru Yamaoka, Michihiro Matsumoto, Shohji Ohtsubo, Masao Nonaka, Mitsuaki Oshima
  • Patent number: 8180060
    Abstract: In the telemedical system securely sharing encryption keys for enabling secure exchange of the encrypted biological data between the measurement terminal and the server to prevent the data from being stolen by the malicious third party, a service key is transferred to the second adapter attached to a measurement terminal from the server via the first adapter attached to the management apparatus. First, the first adapter attached to the management apparatus receives the service key from the server. Next, the first adapter is temporarily detached from the management apparatus and is attached to the measurement terminal to store the symmetric key. The first adapter is detached from the measurement terminal, and is attached to the management apparatus again. The service key received in the first adapter is encrypted using the symmetric key, and the encrypted key is transmitted to the second adapter attached to the measurement terminal.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: May 15, 2012
    Assignee: Panasonic Corporation
    Inventors: Kazuhiro Aizu, Yosuke Tajika, Daisuke Kobayashi, Hiromichi Nishiyama, Masao Nonaka, Natsume Matsuzaki, Kaoru Yokota, Yuichi Futa
  • Publication number: 20120098518
    Abstract: A detection apparatus (102) connected to a device in a residence and an electricity meter (100) indicating an amount of electric power consumed by the device in the residence, the detection apparatus (102) including: a reception unit (1021) which receives the amount of electric power from the electricity meter (100); a collection unit (1024) which collects usage status of the device; a device information holding unit (1027) which holds device information including the usage status of the device and electric power consumption of the device corresponding to the usage status; and a determination unit (1025) which determines whether or not the electricity meter (100) is tampered, by comparing an estimated electric power consumption amount with the amount of electric power received by the reception unit (1021), the estimated electric power consumption amount being estimated from the usage status of the device by using the device information, in which the determination unit (1025) determines that the electricity me
    Type: Application
    Filed: April 8, 2011
    Publication date: April 26, 2012
    Applicant: Panasonic Corporation
    Inventors: Yuji Unagami, Masao Nonaka, Yuichi Futa, Hideki Matsushima, Natsume Matsuzaki
  • Patent number: 8135130
    Abstract: The data encryption apparatus with a data converting unit splits 256-bit input data into 32-bit data blocks A1, B1, A2, and B2. A first combining unit performs an exclusive OR operation on A1 and B1, and on A2 and B2. A first scramble unit branches A1, A2, and the results of the exclusive OR operations (C1 and C2) into three data blocks each, and for each set of three data blocks, shift-rotates two of the data blocks and combines the shifted data blocks with the remaining data block. A second combining unit performs an exclusive OR operation on D1 and E2, and on D2 and E1, which are the results of the processing performed by the first scramble unit. A block concatenating unit concatenates the results of the operations performed by the second combining unit. A second scramble unit branches the concatenated data into three data blocks, shift-rotates two of the data blocks and combines the two shifted data blocks with the remaining data block.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: March 13, 2012
    Assignee: Panasonic Corporation
    Inventors: Masao Nonaka, Kaoru Yokota, Motoji Ohmori
  • Publication number: 20120060008
    Abstract: An information processing terminal (101) includes: a storage area (206), in which general information (211) and confidential information (210) are recorded; an input/output receiving unit (201) which receives an access command to general information (211) or confidential information (210); a route information holding unit (203) in which route information is held, the route information indicating an area of activity in which access to the confidential information (210) is allowed; a current location acquisition unit (304) which acquires current location information indicating the current location of the information processing terminal (101); an access determination unit (305) which allows access to the confidential information (210) when the location of the information processing terminal (101) indicated by the current location information is in the route information; and a confidential information access unit (306) which accesses the confidential information (210) in response to the access allowance by the ac
    Type: Application
    Filed: February 9, 2011
    Publication date: March 8, 2012
    Inventors: Hideki Matsushima, Natsume Matsuzaki, Kouji Kobayashi, Masao Nonaka
  • Publication number: 20120051203
    Abstract: The present invention provides an apparatus for correctly controlling content recorded on an optical disc. An apparatus 600 for using content recorded on an optical disc 601, wherein the optical disc 601 includes a control information area 602 composed of partial areas 603a-603n, each being for recording control information indicating that use of the content is not permitted, the apparatus 600 comprises: a position information holding unit 612 holding therein position information indicating one of the partial areas 603a-603n that is allocated for the apparatus 600 to record the control information; a reading unit 613 reading information within the control information area 602; a judgment unit 614 judging whether use of the content is permitted, with use of the information read by the reading unit 613 and the position information; and a usage control unit 615 using the content when use of the content is judged to be permitted.
    Type: Application
    Filed: March 25, 2011
    Publication date: March 1, 2012
    Inventors: Masao Nonaka, Natsume Matsuzaki
  • Patent number: 8126318
    Abstract: A system, which minimizes a time delay caused by one device being unable to access a recording medium until access by another device ends, when transcoding is performed by distributed processing, includes a main device transcoding each coded piece allocated to itself from among a plurality of coded pieces of a digital stream, and writing a transcoding result onto the recording medium, in a pipeline. While the recording device is performing the transcoding and the writing, an auxiliary device transcodes each coded piece allocated to itself one by one. Having completed the transcoding of all coded pieces allocated to itself, the auxiliary device transmits its transcoding results to the recording device and has the recording device write the transcoding results onto the recording medium which is a copy destination.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: February 28, 2012
    Assignee: Panasonic Corporation
    Inventors: Masao Nonaka, Yoshiaki Iwata, Yoichi Yamamoto, Motoji Ohmori
  • Patent number: 8094811
    Abstract: A data encryption device that is capable of stopping power analysis attacks and reducing instances of speed drops and memory amount increases in encryption processing more effectively than in the past; the data encryption device performs a predetermined encryption, based on a key, on a plain text, and includes a random number generation unit (410a) which generates one core random number per round, concatenates a predetermined amount of plural core random numbers and generates a first random number; an exclusive OR unit which data-merges the plain text with the first random number and generates intermediate data (410b); and a data randomizing unit (410f, 410k) which performs a data randomizing process on the intermediate data, the data randomizing process being based on the first random number, a second random number and the key.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: January 10, 2012
    Assignee: Panasonic Corporation
    Inventors: Kaoru Yokota, Masao Nonaka
  • Publication number: 20110314280
    Abstract: A measurement device (11) measures vital data, encrypts the vital data using an encryption key to generate encrypted vital data, and generates, from a decryption key of the vital data, two pairs of a first share FSD and a second share SSD which enable reproduction of the decryption key. The measurement device (11) generates an encrypted second share by encrypting the second share SSD. The measurement device (11) transmits the encrypted vital data, the first share FSD, the encrypted second share to a server device (15) via an intermediate device (13).
    Type: Application
    Filed: March 30, 2010
    Publication date: December 22, 2011
    Inventors: Masao Nonaka, Natsume Matsuzaki, Hideki Matsushima, Yuichi Futa
  • Patent number: 8077980
    Abstract: An image processing apparatus enables image data to be handled easily after photography. A server apparatus patterns images and controls information in correspondence with user identifiers. A digital camera photographs a subject, obtains a pattern image and a piece of control information from the server apparatus, and judges whether a portion of the image data obtained by photography matches the obtained pattern image. If a matching portion exists, then the digital camera operates in accordance with an operation instruction included in the piece of control information. If the operation instruction is mosaic processing, then the digital camera performs mosaic processing to the matching portion. If the operation instruction is image replacement, then the digital camera replaces the matching portion with a predetermined image or performs CG processing on the matching portion. If the operation instruction is frame deletion, then the digital camera deletes the image data.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: December 13, 2011
    Assignee: Panasonic Corporation
    Inventors: Natsume Matsuzaki, Kaoru Yokota, Masao Nonaka, Mitsuhiro Inoue, Tohru Nakahara, Akio Higashi
  • Patent number: 8054967
    Abstract: A computer system having resistance to timing attacks based on measuring processing times by encrypting or decrypting a plain text or ciphertext by converting the partial data related to the plain text or the encrypted text into conversion data. In the system, a conversion table includes one piece of conversion data corresponding to the partial data at a start position of a line table area and includes data not associated with the conversion in the other position. In the system, a computer program includes an operation instruction for calculating a predetermined position of the conversion data in the conversion table by using acquired partial data and a read instruction for reading out the conversion data from the calculated position.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: November 8, 2011
    Assignee: Panasonic Corporation
    Inventors: Masao Nonaka, Kaoru Yokota, Motoji Ohmori
  • Publication number: 20110271344
    Abstract: A malicious-module identification device (200a) identifies and deactivates a malicious module operating in an information processing device (100a) connected thereto via a network. The malicious-module identification device is provided with a reception unit (2310) for receiving results of tampering detection from a plurality of modules for detecting tampering, a determination unit (210a) for assuming that a module among the plurality of modules is a normal module, determining, based on the assumption, whether a contradiction occurs in the received results of tampering detection, and identifying the module assumed to be a normal module as a malicious module when determining that a contradiction occurs, and a deactivation unit (2320) for outputting an instruction to deactivate the module identified as the malicious module.
    Type: Application
    Filed: February 15, 2010
    Publication date: November 3, 2011
    Inventors: Yuji Unagami, Manabu Maeda, Yuichi Futa, Natsume Matsuzaki, Masao Nonaka, Hiroki Shizuya, Masao Sakai, Shuji Isobe, Eisuke Koizumi, Shingo Hasegawa, Makoto Carlos Miyauchi
  • Publication number: 20110239297
    Abstract: A management device detects whether any normal monitoring module that has not been tampered with exists by referring to monitoring results received from an information security device and selects, when existence is detected, one of the monitoring modules and assumes that the selected monitoring module has been tampered with. The monitoring device then successively applies a procedure to monitoring modules other than the selected monitoring module by referring to the monitoring results, starting from the selected monitoring module, the procedure being to assume that any monitoring module determining that a monitoring module assumed to have been tampered with is normal has also been tampered with. As a result of the procedure, when all of the monitoring modules are assumed to have been tampered with the management device determines the selected monitoring module to be a normal monitoring module that has not been tampered with.
    Type: Application
    Filed: February 15, 2010
    Publication date: September 29, 2011
    Inventors: Yuji Unagami, Manabu Maeda, Yuichi Futa, Natsume Matsuzaki, Masao Nonaka, Hiroki Shizuya, Masao Sakai, Shuji Isobe, Eisuke Koizumi, Shingo Hasegawa, Makoto Carlos Miyauchi
  • Publication number: 20110238324
    Abstract: A biological information measuring device including: a finger insertion part (401); a first light source (402) which emits, to the finger insertion part, first light; a second light source (403) which emits, to the finger insertion part, second light; a first light-receiving unit (404) which receives first reception light which is the first light transmitted through the finger or reflected from the finger; a second light-receiving unit (405) which receives second reception light which is the second light transmitted through the finger or reflected from the finger; a calculating unit (407) which measures a vein pattern of the user based on the first reception light, and measures biological data of the user based on the second reception light; and a transmitting and receiving unit (409) which transmits, to an external server, a measurement result of the vein pattern and a measurement result of the biological data.
    Type: Application
    Filed: December 11, 2009
    Publication date: September 29, 2011
    Inventors: Hideki Matsushima, Masao Nonaka, Natsume Matsuzaki, Yuichi Futa
  • Publication number: 20110225653
    Abstract: To aim to provide a monitoring system and a program execution apparatus that are capable of maintaining the security intensity even in the case where an unauthentic install module is invalidated. Install modules 131 to 133 included in an apparatus 100 each monitor an install module, which is a monitoring target indicated by a monitoring pattern included therein, as to whether the install module performs malicious operations. An install module that performs malicious operations is invalidated in accordance with an instruction from an update server 200. The monitoring patterns are restructured by the update server 200 such that the install modules except the invalidated install module are each monitored by at least another one of the install modules. The restructured monitoring patterns are distributed to the install modules except the invalidated install module.
    Type: Application
    Filed: November 20, 2009
    Publication date: September 15, 2011
    Inventors: Manabu Maeda, Yuji Unagami, Yuichi Futa, Natsume Matsuzaki, Masao Nonaka, Hiroki Shizuya, Masao Sakai, Shuji Isobe, Eisuke Koizumi, Shingo Hasegawa
  • Patent number: 8015614
    Abstract: An information security device is provided that, when information is circulated through a chain, permits changing of a usage rule for the information or collection (deletion) of the information after the circulation. An information security device (200) includes: a receiving unit (201) that receives a content and a collection command; a content storing unit (202) that stores a content and its usage rule; a collection command confirmation unit (203) that checks the validity of a received collection command; a content deletion unit (204) that deletes a content; a chain information storage unit (205) that stores chain information containing sending and receiving information of a content; a destination list storage unit (206); a sending unit (207) that sends a content and a collection command; and a control unit (208) that controls the processing for a collection command. When a collection command is sent after content distribution, the content can be collected (deleted) in the destination of circulation.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: September 6, 2011
    Assignee: Panasonic Corporation
    Inventors: Natsume Matsuzaki, Kaoru Yokota, Masao Nonaka
  • Patent number: 7995766
    Abstract: Provided is a group subordinate terminal in a key updating system that includes a server and a group of terminals including: a group managing terminal; and group subordinate terminals including the group subordinate terminal, the group subordinate terminal comprising: a group withdrawal request processing unit which transmits a group withdrawal request to the group managing terminal in response to an instruction to update its apparatus-unique key, the group withdrawal request requesting for withdrawal of the group subordinate terminal from the group; an update apparatus-unique key requesting unit which requests for another apparatus-unique key by transmitting to the server a group withdrawal certificate indicating that the withdrawal of the group subordinate terminal from the group of terminals is completed through invalidation of its group key; and an update processing unit which updates the apparatus-unique key held in an apparatus-unique key holding unit to the another apparatus-unique key obtained from th
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: August 9, 2011
    Assignee: Panasonic Corporation
    Inventors: Taichi Sato, Kaoru Yokota, Natsume Matsuzaki, Yuichi Futa, Tetsuya Inoue, Masao Nonaka
  • Patent number: 7969322
    Abstract: A processing apparatus that is connected with another processing apparatus via a network, receives a request for a processing from the other processing apparatus, executes the requested processing while not performing an originally intended process of the processing apparatus, and indicates that the processing apparatus is executing the requested processing, by causing an indicator to blink on and off.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: June 28, 2011
    Assignee: Panasonic Corporation
    Inventors: Masao Nonaka, Kazuhiko Yamauchi, Yoshiaki Iwata
  • Publication number: 20110119493
    Abstract: Processing load on an executing device for conducting playback is high during the playback of contents since the executing device performs verification of the contents validity in parallel with the contents playback, and therefore the executing device has to be equipped with a highly efficient processor. The present invention reduces the processing load involved in the verification by using, for the verification, only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on the DVD. In addition, the present invention is capable of improving the accuracy of detecting unauthorized contents to some extent by randomly selecting a predetermined number of encrypted units every time the verification is performed.
    Type: Application
    Filed: January 21, 2011
    Publication date: May 19, 2011
    Inventors: Masao NONAKA, Yuichi Futa, Toshihisa Nakano, Kaoru Yokota, Motoji Ohmori, Masaya Miyazaki, Masaya Yamamoto, Kaoru Murase, Senichi Onoda