Hudson Soft Co., Ltd.

Pioneer Electronic Corporation

Setsuo Okada

Noriyoshi Takeya

Hitoshi Yamazaki

Yoshiki Furuta

Takashi Yoshimi

Manabu Okamoto

Masahiro Sui

Hiroyasu Matsuura

Masakazu Miyazaki

Hirofumi Matoba

Yoshinobu Nagase

A register having a predetermined set value is provided in parallel with a counter for counting a basic signal generated from a crystal oscillator. The register and the counter are connected to a comparator for inputting a count signal into a time-counting circuit every time when the count value of the basic signal in the counter has reached the set value in the register. A signal based on the time-counting signal is sent from the time-counting circuit to a display which indicates time based on the signal. The time indicated on the display is compared with the standard time indicated by a television or the like. In this case, when there is a time difference between the display time and the standard time, a correction value, in terms of the number of seconds, corresponding to the time difference is input through an input unit. The input correction value is calculated in a computing circuit, and is set as a new set value in the register. A time-counting signal based on the newly set value in the register is output from the comparator. This improves the accuracy of the time indicated on the display.

Clock or watch having accuracy-improving function

A speed measuring apparatus and a toy for measuring a speed of a moving member has a quartz oscillator for generating a clock signal which has a predetermined frequency, a CR oscillator for generating a clock signal which has a higher frequency than that of the quartz oscillator, a comparative circuit, connected with the quart oscillator and the CR oscillator, for comparing the oscillation frequency of the quartz oscillator as a reference signal with the oscillation frequency of the CR oscillator, a corrective circuit, connected with the comparative circuit, for calculating a corrective factor in accordance with a result from the comparative circuit, a measuring unit, connected with the CR oscillator and the corrective circuit, for measuring a speed of the moving member in accordance with the clock signal from the CR oscillator and the corrective factor from the corrective circuit, and a display unit, connected with the measuring unit, for displaying the speed computed by the measuring unit. Therefore, in the speed measuring apparatus and the toy, the speed can be measured correctly with an increased number of significant figures, and the increase of the cost is suppressed, even if the oscillation frequency of the CR oscillator is fluctuated by the fluctuations of the temperature and the humidity, because the clock signal from the CR oscillator is corrected in accordance with the clock signal from the quartz oscillator.

Speed measuring apparatus and toy for measuring speed of moving member

A natural environment observation system has a GPS for detecting the present location (address), a calendar for providing the present date and time, a memory for storing natural phenomenon data, such as astronomical data, oceanic data, etc.; and an arithmetic unit for processing the natural phenomenon data, in accordance with the present location and time and the kind of information to be observed.

Portable Astronomic/meteoric observation system

A radio system has a detector detecting a required radio program, and supplying an instruction signal when the program is detected thereby. In accordance with the instruction signal, a recording unit begins to record the program.

Radio having a recording and reproducing unit responsive to a radio wave

A camera has a display for displaying a subject with colors which are determined in accordance with a color correction coefficient. The coefficient is generated in accordance with a combination of photographic parameters, such as a shutter speed, an aperture, etc.

Camera having color correction coefficients set in accordance with a

Radio with recording and reproducing function

A video mixing apparatus mixes a graphics video image and a playback video image at a plurality of mixture ratios in one image plane. Fade data indicative of the mixing ratio of at least one line of the playback video signal and the graphics video signal is sequentially generated in accordance with a predetermined order. The fade data is held into holding means and is outputted from the holding means synchronously with a horizontal sync signal. The levels of the playback video signal and the graphics video signal are individually adjusted in accordance with the fade data outputted from the holding means and the adjusted signals are added. The playback video signal and the graphics video signal are mixed at the mixing ratio set every line of one image plane. In a video apparatus using the graphics video image and playback video image, various kinds of effective video images can be formed by mixing the graphics video image of every video image such as background, person, characters, or the like and the playback video image.

Growing community of inventors

Hokkaido, Japan

Setsuo Okada