Patents by Inventor Kazumi Onishi

Kazumi Onishi 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: 20070140492
    Abstract: A signal transmitted from a first device to a second device is encrypted using an encryption key generated from a preceding part of the signal itself. The signal is decrypted in the second device using a decryption key generated from a preceding part of the received and decrypted signal. This encryption method provides effective privacy protection, because the encryption and decryption keys are constantly changing. Since the transmitted signal provides its own encryption and decryption keys, the method is inexpensive to implement, and can be used in systems such as packet transmission systems that transmit signals intermittently.
    Type: Application
    Filed: January 24, 2006
    Publication date: June 21, 2007
    Applicant: Oki Electric Industry Co., Ltd.
    Inventor: Kazumi Onishi
  • Patent number: 7227956
    Abstract: A signal transmitted from a first device to a second device is encrypted using an encryption key generated from a preceding part of the signal itself. The signal is decrypted in the second device using a decryption key generated from a preceding part of the received and decrypted signal. This encryption method provides effective privacy protection, because the encryption and decryption keys are constantly changing. Since the transmitted signal provides its own encryption and decryption keys, the method is inexpensive to implement, and can be used in systems such as packet transmission systems that transmit signals intermittently.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: June 5, 2007
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Kazumi Onishi
  • Patent number: 7082199
    Abstract: A signal transmitted from a first device to a second device is encrypted using an encryption key generated from a preceding part of the signal itself. The signal is decrypted in the second device using a decryption key generated from a preceding part of the received and decrypted signal. This encryption method provides effective privacy protection, because the encryption and decryption keys are constantly changing. Since the transmitted signal provides its own encryption and decryption keys, the method is inexpensive to implement, and can be used in systems such as packet transmission systems that transmit signals intermittently.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: July 25, 2006
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Kazumi Onishi
  • Publication number: 20020090088
    Abstract: A signal transmitted from a first device to a second device is encrypted using an encryption key generated from a preceding part of the signal itself. The signal is decrypted in the second device using a decryption key generated from a preceding part of the received and decrypted signal. This encryption method provides effective privacy protection, because the encryption and decryption keys are constantly changing. Since the transmitted signal provides its own encryption and decryption keys, the method is inexpensive to implement, and can be used in systems such as packet transmission systems that transmit signals intermittently.
    Type: Application
    Filed: August 9, 2001
    Publication date: July 11, 2002
    Inventor: Kazumi Onishi