Casio Computer Co., Ltd.

Sony Corporation

Kunio Sato

Nobuo Iizuka

Junichi Minamitaka

Mayumi Ohya

Kotaro Takagi

Kazumasa Morichika

Tsuyoshi Mitarai

Mayumi Ino

Kazunori Imazaki

A CPUof a light emitting unitfetches ith bit of transmission information TX stored in a transmission data memoryin synchronization with a clock signal CK from a timing generatorThe CUPdetermines the bit value and fetches a first pattern sequence SA from a pattern data memorywhen the bit is logic signaland fetches a second pattern sequence SB from a pattern data memorywhen the bit is logic signaland outputs the first pattern sequence SA and second pattern sequence SB to a light emitting sectionWhile, a CPUof a light receiving unitextracts a pixel area with a time sequence luminance variation pattern from a frame image captured into a capture image bufferand binarizes the luminance variation pattern, and performs logic determination. A liquid crystal displaydisplays information of a light emitting area to be overlapped with a subject image.

Information transmission system using light as communication medium, information transmission method, image pickup device, and computer programmed product

A projector () includes a template memory (), the template memory storing beforehand, for example data of template images made of only ruled lines. A displaying unit () of the projector () projects template images to a screen (S). A digital camera unit () carries out imaging of characters, etc., that are written on the screen (S), together with projected template images. A CPU () sends data of the image that is carried out imaging, to a PC (). The PC () receives the image data, and stores it to a storing unit ().

Projection device projection system, and image obtainment method

A calligraphy/drawing camera image-captures a document and sends a resultant captured image to a personal computer (S). The personal computer applies various image processes such as correction of various deformations including a trapezoidal deformation based on image information obtained from the captured image, a rotation process, a cut out process, etc. to the captured image (Sto S). The personal computer sends the processed image to a projector (S). The projector projects the processed image on a screen (S). Since the captured image is corrected based on the image information obtained from the captured image, not only correction of a trapezoidal deformation but also various other corrections can be done on the captured image.

Captured image projection apparatus and captured image correction method

A CPUof a light emitting unitfetches ith bit of transmission information TX stored in a transmission data memoryin synchronization with a clock signal CK from a timing generator. The CUPdetermines the bit value and fetches a first pattern sequence SA from a pattern data memorywhen the bit is logic signal, and fetches a second pattern sequence SB from a pattern data memorywhen the bit is logic signal, and outputs the first pattern sequence SA and second pattern sequence SB to a light emitting section. While, a CPUof a light receiving unitextracts a pixel area with a time sequence luminance variation pattern from a frame image captured into a capture image buffer, and binarizes the luminance variation pattern, and performs logic determination. A liquid crystal displaydisplays information of a light emitting area to be overlapped with a subject image.

An envelope extracting circuit extracts an envelope from the waveform sampled by a musical tone sampling circuit, and stores the envelope data into a memory. An envelope approximating circuit approximates the envelope data as stored in the memory by the function data such as linear or exponential function data. The original envelope is approximated by a limited number of function waveforms whose characteristics change at switching points.

Apparatus for appoximating envelope data and for extracting envelope

A radio telephone apparatus for transmitting and receiving information signals as electrical waves includes a main body section towards one end of which a speaker unit is enclosed. A battery casing accommodating a battery which is adapted for supplying power to the main body section is detachably mounted on the other end of the main body section to reduce the size and the thickness of the apparatus. A ringer device is enclosed within the battery casing so that the acoustic sound emitted by the ringer is prevented from reaching the user's ear which is in the vicinity of the speaker unit. The microphone for the radiotelephone apparatus in also enclosed within the battery casing.

Radio telephone apparatus with microphone mounted in battery case

Envelope generating apparatus

Apparatus for extracting envelope data from an input waveform signal and

Two electronic musical instruments are supported in combination on a stand. The electronic musical instruments have respective switch sections each for setting a plurality of different timbres which are different from those which can be set by the other. When transfer mode switches of both the instruments are 'on', timbre data set in one electronic musical instrument is transferred to the other electronic musical instrument through a cable, so that tones with the same timbre are sounded from loudspeakers connected to the respective instruments.

Hybrid electronic musical instrument

Musical tone color setting apparatus is arranged so that when a program/preset switch, a feet switch envelope switch and modulation switch are actuated together with a selected key of a ten-key input unit, program tone color data obtained by combining data selected from three groups of tone color data is stored in a tone color data memory. A tone color data corresponding to the program tone color data stored in the memory is later read out from a ROM, and a music sound having a tone color corresponding to the tone color data is generated from a loudspeaker in response to operation of a keyboard.

Tone color setting apparatus

Basic frequency data is preliminarily stored in a ROM. Tuning data obtained from a tuning counter according to manual operation of a rotary switch, and basic frequency data out from the ROM are processed in a CPU to form modified frequency data, which is stored in a RAM. The modified frequency data stored in the RAM is selectively read out according to the operation of the keyboard, so that a tuned note sound is produced from a loudspeaker.

Tuning control apparatus

A digital musical tone signal is generated in a first LSI selected by a chip select signal transferred from a CPU in accordance with a control signal transferred through a control bus from the CPU. Amplitude data and envelope data are transferred from a second LSI to the first LSI through data lines. In the first LSI, the digital musical tone signal amplitude- and envelope-controlled is transferred to an A/D converter where it is converted into an analog musical tone signal.

Digital electronic musical instrument

A power saving device for an electronic musical instrument in which when the electronic musical instrument is idle, or no key operation by an operator takes place for a given period of time, a power source is automatically turned off to thereby prevent wasteful power consumption.

Growing community of inventors

Ome, Japan

Kunio Sato