Nec Corporation

Japan E.m. Co., Ltd.

Masaru Terashima

Hideki Sawada

Mitsumasa Tanaka

Yuzo Shimada

Sakae Kitajo

Ichiro Hazeyama

Kazuhiko Futakami

Takashi Sameshima

Akeo Katahira

Jun Ishida

Mikio Sugiyama

Takashi Samejima

Conductive balls are transferred from a pallet onto an array of conductive pads on a semiconductor chip by means of a transfer apparatus; the transfer apparatus includes a pallet formed with an array of recesses same in pattern as the array of conductive pads, a movable head formed with an array of vacuum holes and a driving mechanism for moving the head from an idle position onto the pallet and from the pallet to the semiconductor chip; when the head is moved to the pallet, the vacuum holes are connected to the recesses so as to confine the conductive balls in the narrow spaces; the vacuum is developed; then the conductive balls are traveled through the closed spaces to the vacuum holes; even if the conductive balls have been charged, the conductive balls are never attracted to the adjacent balls, and are surely captured by the vacuum holes.

Transfer apparatus for arraying small conductive bumps on a substrate and/ or chip

Transfer apparatus for arraying small conductive bumps on substrate and/ or chip

A MCU unit of a video-meeting control system includes a volume level detector for detecting volume levels of a plurality of meeting terminals, a speaker terminal selection block for selecting a speaker terminal having a maximum volume level, mixing the voice data based on volume levels detected, and a mixer for mixing the voice data based on a specified mixing level of the speaker terminal, and transmitting the video data and the mixed voice data to the meeting terminals. The specified mixing level of the speaker terminal emphasizes the volume level of the speaker terminal.

Multipoint video-meeting control system

To provide an apparatus for a synchronized playback of compressed digital data of audio-video signals with a simple configuration to be applied to a system having comparatively low data processing ability, independent of resolution of a software timer of the system, the apparatus of the invention obtains a reference time indicating reproduction time passage of the audio signal component from reproduced data amount of the audio signal component, and detects progress of the video signal component in reference to the reference time.

Apparatus for a synchronized playback of audio-video signals

An apparatus for producing synchronized playback of compressed digital data of audio-video signals from a desired portion of the digital data. The apparatus can be used in a system having comparatively low data processing ability, and work independent of the resolution of a software timer of the system. The apparatus comprises a frame counter for obtaining a reference time indicating reproduction time passage of the audio signal component from a reproduced data amount of the audio signal component. A delay detector detects progress of the video signal component in reference to the reference time.

Apparatus for synchronized playback of audio-video signals

An image and sound synchronizing reproduction apparatus includes a reference time calculation circuit for calculating a reference time in response to a data amount of decoded sound data, a delay detecting circuit calculating number of image frames to be processed practically in the decoding process in response to the reference time and comparing the number of image frames with number of frames practically processed in the decoding process, for detecting a delay of image decoding process, a frame-removing control circuit for performing a discriminating process of frames to be omitted the decoding process in response to the number of delay frames detected by the delay detecting circuit, and an image data input control circuit for performing an omission to read compressed image data corresponding to the frames discriminated by the frame-removing control circuit, controlling finely the image and sound synchronizing reproduction regardless of the structure of compressing coded data.

Image and sound synchronizing reproduction apparatus and method of the

Growing community of inventors

Shizuoka, Japan

Masaru Terashima