Patents by Inventor Makoto Nakatsu

Makoto Nakatsu 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).

  • Patent number: 7570747
    Abstract: A PBX which accommodates an extension station and voice store equipment, the PBX comprising a controller for controlling interconnection between the extension or the voice store equipment and an outside line, the controller including: a destination extension number determination unit for determining the destination extension number for an incoming call from the outside line; a destination extension determination unit for determining whether the destination extension is the extension station or the voice store equipment based on the determined destination extension number; a voice store equipment termination processing unit for performing termination processing concerning the voice store equipment in case it is determined on the destination extension determination means that the destination extension is the voice store equipment; and an extension station termination processing unit for performing termination processing concerning the extension station in case it is determined on the destination extension deter
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: August 4, 2009
    Assignee: Panasonic Corporation
    Inventor: Makoto Nakatsu
  • Patent number: 6870908
    Abstract: According to the present invention, a voice storage device includes a port control unit for monitoring a service state of a port of a PBX extension circuit, and a private branch exchange is configured to transmit, upon receipt of an incoming call, an incoming signal including caller information and the number of a port receiving the incoming call to the voice storage device without bringing an outside line to an off-hook state. As the voice storage device receives the incoming signal, the port control unit detects the port, which is available. When the port is available, paging directed to an individual extension telephone is performed through the private branch exchange by use of this available port, and until the outside line goes off-hook, a caller keeps hearing a ringback tone with the ringing signal being sent from a telephone office to the caller.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: March 22, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Makoto Nakatsu
  • Publication number: 20040247096
    Abstract: A PBX which accommodates an extension station and voice store equipment, the PBX comprising a controller for controlling interconnection between the extension or the voice store equipment and an outside line, the controller including: a destination extension number determination unit for determining the destination extension number for an incoming call from the outside line; a destination extension determination unit for determining whether the destination extension is the extension station or the voice store equipment based on the determined destination extension number; a voice store equipment termination processing unit for performing termination processing concerning the voice store equipment in case it is determined on the destination extension determination means that the destination extension is the voice store equipment; and an extension station termination processing unit for performing termination processing concerning the extension station in case it is determined on the destination extension deter
    Type: Application
    Filed: April 26, 2004
    Publication date: December 9, 2004
    Inventor: Makoto Nakatsu
  • Publication number: 20030228001
    Abstract: According to the present invention, a voice storage device includes a port control unit for monitoring a service state of a port of a PBX extension circuit, and a private branch exchange is configured to transmit, upon receipt of an incoming call, an incoming signal including caller information and the number of a port receiving the incoming call to the voice storage device without bringing an outside line to an off-hook state. As the voice storage device receives the incoming signal, the port control unit detects the port, which is available. When the port is available, paging directed to an individual extension telephone is performed through the private branch exchange by use of this available port, and until the outside line goes off-hook, a caller keeps hearing a ringback tone with the ringing signal being sent from a telephone office to the caller.
    Type: Application
    Filed: June 5, 2003
    Publication date: December 11, 2003
    Inventor: Makoto Nakatsu
  • Publication number: 20010016033
    Abstract: An audio storage apparatus for reproducing response message corresponding to caller information. An audio storage stores audio data such as a response message. A caller information detector detects caller information incoming from a network. A message controller assigns each caller information with the response message. When calling in, the response message is reproduced on the basis of the mailbox designated by the caller and the caller information detected by the caller information detector. If there is a response message to a specific caller in an assigned mailbox, this response message is reproduced. For example, by registering in the mailbox on the basis of the caller information separated into an organization and an individual person, the response message can be used selectively for the individual person and the organization.
    Type: Application
    Filed: December 21, 2000
    Publication date: August 23, 2001
    Inventor: Makoto Nakatsu