Abstract: An information processing system includes a first information processing apparatus, which authenticates second and third information processing apparatuses, acquires first data from the second information processing apparatus, and transmits second data indicating a method of generating a key from the first data, to the second and third information processing apparatuses; the second information processing apparatus, which transmits the first data to the first and third information processing apparatuses, acquires the second data from the first information processing apparatus, generates the key based on the first and second data, and communicates with the third information processing apparatus based on the key; and the third information processing apparatus, which acquires the first data from the second information processing apparatus, acquires the second data from the first information processing apparatus, generates the key based on the first and second data, and communicates with the second information pro

Abstract: In a call between terminals in different FWs, tunnel devices T1, T3 mutually conduct call control and speech packet transmission by way of a relay device T2 outside of the FWs, thereby enabling a call through transmissions of speech packets and the like between the terminals even in the case of Symmetric NAT. A speech packet transmission path for RTP and the like between terminals is set as a directly routed path (direct path) rather than by way of a tunnel device thereby eliminating bottleneck in the tunnel. The IP telephone technology can be provided for transmitting speech packet by way of a tunnel even in the case of Symmetric NAT.

Abstract: The present invention includes a microphone 1 inputting voice uttered by a user; a voice recognition processing section 3 recognizing the voice inputted by the microphone 1, and converting the recognized voice into an input symbol string; a conversation pattern processing section 5 inputting the input symbol string from the voice recognition processing section 3, and outputting an output symbol string corresponding to the input symbol string based on a conversation pattern described in advance; a voice synthesis processing section 7 converting the output symbol string from the conversation pattern processing section 5 into voice; a speaker 9 outputting and uttering the voice from the voice synthesis processing section 7; and a conversation learning section 41 grasping conversation characteristics of the user based on the input symbol string from the conversation pattern processing section 5, and changing the output symbol string in accordance with the grasped conversation characteristics.

Abstract: The objective of this disclosure is to propose a method of designing an intelligent system assuring autonomy in problem solving to the largest extent. An architecture of a general purpose problem solving system and also a new modeling scheme for representing an object which may include human activity are discussed first. Then a special purpose problem solving system dedicated for a given problem is generated. It is extracted from a general purpose system using the object model as a template. Several new concepts are included in this disclosure to achieve this goal; a multi-level function structure and its corresponding knowledge structure, multiple meta-level operations, a level manager for building general purpose problem solving systems, a concept of multi-strata model to represent objects including human activity, and a method of extracting a special purpose system from a general purpose system and so on.

Abstract: A knowledge compilation/pattern reasoning system has two subsystems: a pattern generating subsystem for interpreting human representation of knowledge and physical models and transforming them into pattern data, and an executing subsystem for analyzing states by using the generated pattern data and decision criterion data. An operation system of the kind adopting pattern type reasoning may be loaded with only the executing subsystem which uses pattern data compiled by the pattern generating subsystem beforehand, for the purpose of implementing high-speed execution. Since the transformation of human representation of knowledge and physical models into pattern data is effected by the pattern generating subsystem which is independent of the executing system, human representation of knowledge and physical models and pattern data are desirably interfaced to each other.