Canon Kabushiki Kaisha

Isao Harigaya

Koji Takahashi

Susumu Kozuki

Tetsuya Taguchi

Fumio Ito

Michio Hirohata

Kazumitsu Tobe

Tokuichi Tsunekawa

Hiroyuki Takimoto

Hiroyuki Kimura

Takayuki Saeki

Masayoshi Sekine

Shuichi Tamura

Mutsuhide Matsuda

Toshiaki Kondo

Jun Tokumitsu

Akihiro Yamataka

Kenichi Nagasawa

Takao Kinoshita

Masahide Hirasawa

Kazuya Hosoe

Shigeyuki Suda

Minoru Yoshii

Yukio Ogawa

Hideo Tamamura

Nobutoshi Takayama

Makoto Masunaga

Taizou Hori

Takashi Amikura

Ryunosuke Iijima

Toshio Sakane

Tateo Yamada

Ryoichi Suzuki

Takashi Uchiyama

Masamichi Toyama

Toshiaki Mabuchi

Yoshihiro Nakatani

Hisataka Hirose

Mutsunobu Yazaki

Naoki Kawamata

Kouji Takahashi

Hirokazu Mogi

Koichi Miyoshi

A remaining-amount-of-battery detecting device according to the present invention detects the remaining amount of battery power. The device is arranged to measure the open-circuit voltage of a battery and detect the remaining amount of battery power on the basis of the measured open-circuit voltage of the battery, so that it is possible to accurately detect the remaining amount of battery power.

Remaining-amount-of-battery detecting device

Device for detecting the charge condition of a battery which measures the first output of the battery when connected to the first load and the second output of the battery when connected to the second load, and performs a predetermined computation on the basis of both the first and second outputs of the battery to detect the charge condition of the battery. The charge condition of the battery can be very accurately detected.

Battery charge detecting variable loads

A video camera is provided with a detection circuit for detecting a state in which an interchangeable lens is mounted and a control circuit for stopping recording when the detection circuit detects that the interchangeable lens has not been mounted.

Video camera with interruption of recording upon detection of improper

An apparatus is disclosed which is arranged to record a video signal in first areas respectively provided in a multiplicity of tracks on a recording medium and also a digital still-image signal in second areas which are respectively separated from the first areas. In the apparatus, while the digital still-image signal is being recorded in the second areas, the video signal is always recorded in the first areas, whereby it is possible to prevent occurrence of an uncomfortable phenomenon, such as formation of a scene devoid of a substantial image, during reproduction from the first areas. In addition, an analog still-image signal, representative of an image identical to an image represented by the digital still-image signal recorded in the second areas, is repeatedly recorded in the first areas during a predetermined time duration, whereby it is possible to facilitate search of a still-image signal recorded in the second areas. In addition, the digital still-image signal is recorded in the second areas at intervals of a predetermined period during recording of an analog moving-image signal in the first areas, whereby it is possible to record as many still images as possible.

Apparatus for recording digital still image signal and analog video

A recording and reproducing apparatus includes a recording circuit for forming predetermined memory units by correlating video information and audio information with retrieval information for retrieval of the video information and the audio information, and sequentially recording the predetermined memory units in a solid-state memory device at intervals of predetermined time, a file generating circuit for generating a retrieval information file for retrieving the video information and the audio information on the basis of the retrieval information, and a reproducing circuit for reading out the video information and the audio information from the solid-state memory device on the basis of information contained in the retrieval information file and reproducing a video signal and an audio signal from the solid-state memory device, during retrieval of information recorded in the solid-state memory device.

Recording and reproducing apparatus

When moving image information is reproduced from a recording medium as a recording medium to record moving image information, the number of reading portions in the recording medium is set and the moving image information is read out from read addresses corresponding to the number of reading portions which was set, thereby enabling the retrieving operation of the image information to be efficiently executed.

Recording-reproduction apparatus

A charging apparatus for charging a secondary battery, arranged in such a manner that the terminal voltage of the battery being charged is measured and then correlated with remaining charging time and usable time of the battery being charged. The remaining charging time and usable time of the battery being charged is stored in memory and then outputted for display to the operator.

Charging apparatus

A charging apparatus for charging a secondary battery arranged in such a manner that the interterminal voltage of the battery, which is being charged, is measured so that the charging status of the battery is detected in accordance with the measured interterminal voltage of the battery which is being charged and the charging/discharging characteristics with respect to the interterminal voltage of the battery. As a result, the charging status of the battery can accurately be detected.

Battery charging apparatus

An image recording apparatus comprises a recording medium; reproducing device for reproducing an image signal recorded on the recording medium; and image processing device for processing an image signal by using an image memory. In performing a specific action, the apparatus stores in the image memory a reproduced image signal obtained from a recording pause part of the recording medium; and records the reproduced signal again on the recording medium together with a given image signal in a composite state.

Image recording apparatus

A movement detection device for detecting movement of an image incident on an image sensing device and for compensating for that movement includes movement detection circuitry for detecting the movement of the image from image signals output from the image sensing device. Correction circuitry is provided for electrically correcting the movement of the image based on an output of the movement detection circuitry. A filter is provided for receiving the corrected image signals output from the correction circuitry, and for performing a filter processing operation on the corrected image signals to compensate for degradation of image resolution due to the movement of the image.

Movement detection device and focus detection apparatus using such device

An image pick-up apparatus includes a detection circuit for detecting vibration of the apparatus body, a correction system for correcting the vibration by shifting an image, and a control circuit for controlling driving of the correction system in accordance with an output of the detection circuit. A closed loop frequency characteristic is constituted as a notch filter, and a blocking frequency of the notch filter is made variable on the basis of changes in the detected vibration frequency.

Image pick-up apparatus having vibration correcting circuitry

An apparatus is arranged to record a video signal in first areas respectively provided in a multiplicity of tracks on a recording medium and also a digital still-image signal in second areas which are respectively separated from the first areas. In the apparatus, while the digital still-image signal is being recorded in the second areas, the video signal is always recorded in the first areas, whereby it is possible to prevent occurrence of an uncomfortable phenomenon, such as formation of a scene devoid of a substantial image, during reproduction from the first areas. In addition, an analog still-image signal, representative of an image identical to an image represented by the digital still-image signal recorded in the second areas, is repeatedly recorded in the first areas during a predetermined time duration, whereby it is possible to facilitate search of a still-image signal recorded in the second areas. In addition, the digital still-image signal is recorded in the second areas at intervals of a predetermined period during recording of an analog moving-image signal in the first areas, whereby it is possible to record as many still images as possible.

Apparatus for recording digital still image signals and analog still

An image sensing apparatus includes an image sensing circuit for outputting a video signal representative of a subject image, a water-depth sensor for measuring water depths, an indication signal generating circuit for generating a signal for indication of the value of a water depth measured by the depth-water sensor, a combining circuit for combining an output of the image sensing circuit with an output of the indication signal generating circuit, an image displaying circuit for displaying an image represented by an output of the combining circuit, and a recording circuit for recording the video signal representative of the subject image on a recording medium.

Image sensing apparatus

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Kanagawa-ken, Japan

Isao Harigaya