Abstract: A robot apparatus includes a command controller (101) for outputting an output command associated with an input command, management units (102), (103) and (104) for outputting data associated with the commands output by the command controller (101), a command transmitter (105) for controlling the transmission of the data output by the management units (102), (103) and (104) and controllers (106), (107) and (108) for controlling action units (109), (110) and (111), such as a motor, based on data output by the command transmitter (105). The command transmitter (105) sends the action control data for synchronization, output by the management units (102), (103) and (104), in synchroneity to the action units (109), (110) and (111).

Abstract: A robot apparatus causes the emotion in a feeling part (130) to be changed based on the information acquired by a perception part (120) to manifest the behavior of information acquisition as autonomous behavior. The robot apparatus includes a behavior control part for causing the robot apparatus to manifest a language acquisition behavior and a meaning acquisition part. The robot apparatus also includes a control part for performing the behavior control of pointing its object of learning. The robot apparatus causes changes in internal states, which are ascribable to the object, to be stored in a memory part in association with the object.

Abstract: A robot device 1 has a sensor 101 for detecting information of a user, a user identification section 120 for identifying one user from a plurality of identifiable users on the basis of the information of the user detected by the sensor 101, and an action schedule section 130, an action instruction execution section 103 and an output section 104 as action control means for manifesting an action corresponding to the one user identified by the user identification section 120.

Abstract: An arithmetic processing device for inter-object data communication has an object manager for connecting objects so as to enable exchange of data between the objects, and a connection data supplying unit for supplying the object manager with connection data necessary for achieving the connection between the objects. An inter-object communication method and a robot incorporating the arithmetic processing device are also provided. The robot may be designed to enable a user to replace parts thereof, thus changing the robot configuration. The robot preferably includes a part detection unit for detecting parts attached to the robot, and outputting a part detection result in accordance with the detection. An information storage unit stores information corresponding to the part detection result for each configuration obtained by replacement of the parts.

Abstract: A robot (1) is proposed which includes a speech recognition unit (101) to detect information supplied simultaneously with or just before or after detection of a touch by a touch sensor, an associative memory/recall memory (104) to store action made correspondingly to the touch and input information (speech signal) detected by the speech recognition unit (101) in association with each other, and an action generator (105) to control the robot (1) to make action recalled by the associative memory/recall memory (104) based on a newly acquired input information (speech signal). The robot (1) includes also a sensor data processor (102) to allow the robot (1) to act correspondingly to the touch detection by the touch sensor. Thus, the robot (1) can learn action in association with an input signal such as speech signal.

Abstract: A behavior decision system (70) includes a perceptual information acquisition unit (90) which acquires a cause factor being external or internal information acquired by a CCD camera (20), distance sensor (22), microphone (23) or the like and which influences a behavior and a motivational information acquisition unit (81) which acquires an occurrence tendency of a behavior influenced by the cause factor based on the cause factor from the perceptual information acquisition unit (90), a behavior selecting processor (82) which compares occurrence tendencies corresponding to two or more behaviors, acquired by the perceptual information acquisition unit (90) and motivational information acquisition unit (81) and belonging to the same group, to thereby select one of the behaviors, and an output semantics converter module (68) which controls moving parts based on the behavior selected by the behavior selecting processor (82) for expressing the selected behavior.

Abstract: A new scheme for fast realization of encryption, decryption and authentication which can overcome the problems of the RSA cryptosystem is disclosed. The encryption obtains a ciphertext C from a plaintext M according to C≡Me (mod n) using a first secret key given by N (≧2) prime numbers p1, p2, . . . , pN, a first public key n given by a product p1k1 p2k2 . . . pNkN where k1, k2, . . . , kN are arbitrary positive integers, a second public key e and a second secret key d which satisfy ed≡1 (mod L) where L is a least common multiple of p1−1, p2−1, . . . , pN−1. The decryption recovers the plaintext M by obtaining residues Mp1k1, Mp2k2, . . . , MpNkN modulo p1k1, p2k2, . . . , pNkN, respectively, of the plaintext M using a prescribed loop calculation with respect to the first secret key p1, p2, . . . , pN, and by applying the Chinese remainder theorem to the residues Mp1k1, Mp2k2, . . . , MpNkN. This encryption/decryption scheme can be utilized for realizing the authentication.

Abstract: A robot device 1 has a sensor 101 for detecting information of a user, a user identification section 120 for identifying one user from a plurality of identifiable users on the basis of the information of the user detected by the sensor 101, and an action schedule section 130, an action instruction execution section 103 and an output section 104 as action control means for manifesting an action corresponding to the one user identified by the user identification section 120.

Abstract: A secret communication and authentication scheme based on a public key cryptosystem in which a decryption speed is improved while maintaining a security level. In the RSA type secret communication, a plaintext is expressed in a form of a k-digit base n number and a ciphertext is obtained by applying a calculation using the first public key n and the second public key e to the base n number and transmitted. Then, from the received ciphertext, a lowest digit of the base n number is decrypted by using the first public key n and the second secret key d, upper digits of the base n number are sequentially decrypted by using a decrypted value of the lowest digit of the base n number at the receiver side, and the plaintext is recovered by using decrypted values of respective digits of the base n number. The Rabin type secret communication can also be realized by the similar scheme.

Abstract: A throat device for interconnecting at least two drive units and a horn is provided. The throat device comprises a substantially straight body member having one end to be coupled with the horn, and at least two curved branch members coupled with the other end of said body member such that no phase interference occurs in a high frequency sound range.