Nippon Telegraph and Telephone Corporation

Shigeki Masaki

Syunsuke Konagai

Machio Moriuchi

Hidenori Okuda

Yasuyuki Kiyosue

The objective of the present invention is to enable a speaker to visually confirm whether or not his voice has reached a listener. In order to achieve this objective, in the present invention, the listener terminal generates a reception result for voice data, and the talker terminal displays the reception state based on this reception result. It is a further objective of the present invention to enable conversational timing to be achieved easily. In order to achieve this objective, in the present invention, the talker terminal sends utterance data prior to sending voice data, this utterance data being shorter than the voice data. The listener terminal displays the talker terminal's utterance based on this utterance data. Another objective of the present invention is to deliver voice data from the talker terminal to a particular listener terminal only, without having to form a private group. In order to achieve this objective, in the present invention, the server stores permission or denial for sending data from an optional terminal to another optional terminal, and distributes the voice data based on this storage.

Voice communications method, voice communications system and recording medium therefor

A method and an apparatus for decoding image signals capable of achieving a reproduction of the image signals with a high image quality by using a relatively low speed inverse orthogonal transform device. In the apparatus, interframe difference information is integrated by using the orthogonal transform coefficients for the interframe differential signals recovered from the input encoded signals in order to reproduce the image signals, which is carried out in one of two processing modes including: a first processing mode for applying an inverse orthogonal transform to the orthogonal transform coefficients in order to recover the interframe differential signals, and then integrating the interframe difference information by using the recovered interframe differential signals on a pel domain defined in terms of picture elements, in a case where a number of input blocks per unit time in the input encoded signals is less than a prescribed threshold value; and a second processing mode for integrating the interframe difference information by using the orthogonal transform coefficients on a transformed domain defined in terms of the orthogonal transform coefficients, in a case where the number of input blocks per unit time in the input encoded signals is not less than a prescribed threshold value.

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Yokohama, Japan

Shigeki Masaki