Title:
INTERFACE FOR TRANSFERRING SIGNAL FROM ISDN TERMINAL TO ANALOG TELEPHONE NETWORK
Document Type and Number:
Japanese Patent JP3303112
Kind Code:
B2
Abstract:
PURPOSE: To connect an electronic device to an analog telephone line through an ISDN terminal.
CONSTITUTION: This interface transfers a signal from an ISDN terminal to an analog terminal. The ISDN terminal includes a device, which divides a ISDN signal into a control signal and a data signal, a device which utilizes the control signal to generate a tone signal that is sent to a telephone line, a device which interprets a digital control signal into a signal that controls the transfer of data from a digital type to an analog type, a device which interprets a digital signal in an ISDN format into an analog signal under the control of the device which interprets digital control signal into the signal that controls the transfer of data from the digital type to the analog type, a device which interprets a control signal in an analog tone format into a digital signal that controls the transfer of a signal to the ISDN terminal, a device which uses the control signal to control the transfer of data from an analog type to a digital type, and a device which interprets an analog signal into a digital signal under the control of a digital signal that control the transfer of a signal to the ISDN terminal.
Inventors:
Robert Sloan
David Evans
Paul Daasi
David Evans
Paul Daasi
Application Number:
JP10253292A
Publication Date:
July 15, 2002
Filing Date:
March 30, 1992
Export Citation:
Assignee:
Sun Microsystems,Inc.
International Classes:
H04M11/00; H04Q11/04; (IPC1-7): H04M11/00; H04L12/02
Domestic Patent References:
| JP294952A | ||||
| JP63283351A | ||||
| JP251448U |
Attorney, Agent or Firm:
Masaki Yamakawa