公开(公告)号：JPH1011381A

公开(公告)日：1998-01-16

申请号：JP15373096

申请日：1996-06-14

Applicant: IBM

Inventor： ISHIKAWA KATSUYA

IPC: G06F15/00 ,  G06F13/00 ,  H04L12/66 ,  H04L29/06 ,  H04M3/00 ,  H04M3/42 ,  H04M3/56 ,  H04M7/00 ,  H04M11/00 ,  H04N7/14 ,  H04L12/28 ,  H04L12/46

Abstract: PROBLEM TO BE SOLVED: To provide connectivity of Internet video telephone which is easy for a general user of the Internet. SOLUTION: A server A refers to a corresponding record on the basis of the user name characteristics of a user B which is received from a user A to search for a server B which accommodates the user B and the telephone number of the user B, and informs the server B of a request for connection. The server A and server B area always connected to each other and the server B can comply immediately with the request from the server A. The server B refers to the corresponding record in a storage location to confirm whether or not the user B currently has an IP connection and when not, the server B itself makes a dial-up IP connection with the user B. The server B informs the server A of the completion of the IP connection with the user B, and the server A informs the user A of the completion of the IP connection. The users A and B having the IP connection enter a transparent state and communicate with each other even over the Internet.

公开(公告)号：JPH08163275A

公开(公告)日：1996-06-21

申请号：JP30350494

申请日：1994-12-07

Applicant: IBM

Inventor： ISHIKAWA KATSUYA ,  IIDA SEITA

IPC: H04Q3/58 ,  H04L12/18 ,  H04L29/06 ,  H04M3/00 ,  H04M3/56 ,  H04M11/06 ,  H04N7/14 ,  H04N7/15 ,  H04L12/28 ,  H04L12/46 ,  H04L12/56

Abstract: PURPOSE: To realize a video conference with conference participants (nodes) at outside the premises that are connected via a general line by using an existing private line and a LAN. CONSTITUTION: A gateway device 20 that relays between a general line at the outside the premises and a private extension telephone set 30 on the premises as well as an information processing unit 40 on a LAN 52 via a private branch of exchanger 10 is provided with a MODEM that is used to receive a incoming all from the general line, to make a call to the general line conversely and to modulate/demodulate a signal, an assembling/dis-assembling means that assembles voice information and computer data to generate a packet or dis-assembles the packet into voice information and computer data conversely, a LAN adaptor 75 that sends/receives the computer data via the LAN, a dial means 85 that dials the extension telephone set, a signal processing means that codes or decodes the voice information conversely, and an AD/DA converter means 84 that converts an analog signal into a digital signal or conversely converts a digital signal into an analog signal conversely.

公开(公告)号：JP2000099440A

公开(公告)日：2000-04-07

申请号：JP25885998

申请日：1998-09-11

Applicant: IBM

Inventor： ISHIKAWA KATSUYA ,  WATANABE TAKESHI ,  NISHINO MAKOTO ,  TAKAOKA MIKI

IPC: G06F13/00 ,  B65G61/00 ,  G01C21/00 ,  G01C21/26 ,  G06F17/30 ,  G08G1/09 ,  G08G1/133 ,  G09B29/00 ,  H04L12/58 ,  H04L29/08 ,  H04M11/08 ,  H04L12/54

Abstract: PROBLEM TO BE SOLVED: To easily and efficiently distribute information provided from a Web server through Internet by organically coupling a browser software and mail communication. SOLUTION: A service node 40 is operated as a car allocation service device, a client node 30 is operated as a car navigation device mounted on an automobile such as taxi or carrier of home delivery, A Web server 20 distributes position data containing the longitude/latitude of address/location (destination) of individual/company through a communication network 10 to the request service node 40 corresponding to a request from the service node 40. The service node 40 distributes the position data provided from the Web server 20 through the communication network 10 to the client node 30 and the client node 30 displays the route from the current position to the destination on a map and shows it to a driver.

公开(公告)号：JPH09233231A

公开(公告)日：1997-09-05

申请号：JP3157896

申请日：1996-02-20

Applicant: IBM

Inventor： ISHIKAWA KATSUYA

IPC: H04N19/00 ,  G10L19/00 ,  H04L12/70 ,  H04L12/853 ,  H04L12/951 ,  H04M11/06 ,  H04N7/15 ,  H04N19/103 ,  H04N19/115 ,  H04N19/132 ,  H04N19/134 ,  H04N19/172 ,  H04N19/189 ,  H04N19/196 ,  H04N19/423 ,  H04N19/463 ,  H04N19/48 ,  H04N19/503 ,  H04N19/70 ,  H04N19/85 ,  H04N21/2385 ,  H04L12/56 ,  H04N7/24

Abstract: PROBLEM TO BE SOLVED: To send also image data without residence regardless of placing priority onto voice data by adjusting a compression rate of the image data depending on whether or not a packet includes the voice data. SOLUTION: When image data are received, an image code compression rate module applies code compression to the data and a data mixing separate program takes over the control. The data mixing separate program applies code compression to the voice data received at this point of time and mixes the voice data with the received image data and divides the resulting data into packets and updates a Voice Activity (VA) bit denoting the presence of voice input for each 20msec. A voice prediction module reads the VA bit for each prescribed time (t) and references a history of the VA bit within a prescribed time T (T>t) to predict whether or not the voice input is received while image data of a frame are transferred, and also calculates an optimum bit rate based on the result of prediction and feeds back the result.