Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A video signal recording apparatus for recording of a still-image signal on a recording medium can be set to an interval recording mode for recording a still-image signal at intervals of a predetermined time interval. First time data relative to a recording time according to the amount of information of the still-image signal for one picture is compared with second time data relative to the predetermined time interval. If the first time data is greater than the second time data, a notice to that effect is given for the purpose of preventing an operation error. In addition, a similar advantage can be achieved by displaying the first time data. Also, if the first time data is greater than the second time data, the apparatus is disabled from being set to the interval recording mode.

Abstract: An interchangeable lens unit for use in a camera system which is arranged to drive a motor in the interchangeable lens on the basis of a signal supplied from a camera body. The interchangeable lens unit is provided with a circuit for continuously transmitting a specific signal to the camera body for at least the time period required to absorb a backlash when the direction of running of the motor is reversed with respect to the preceding direction of running of the same.

Abstract: A device for running a tape-like medium between a pair of reels in accordance with one of a plurality of tape-running modes having different tape running speeds has the following constituents, a reel driving apparatus for rotating the reels; a circuit for detecting the states of rotation of the reels and for generating reel rotation data; an instruction circuit for giving an instruction for changing the tape running mode; a holding device or memory for holding the reel rotation data when the tape running mode is changed in response to the instruction given by the instruction circuit; and a control circuit for controlling the reel driving apparatus in accordance with the reel rotation data held by the memory, for a predetermined period after the changing of the tape running mode effected by the instruction circuit.

Abstract: An image signal processing apparatus according to the present invention is configured so that a new image signal is formed using an input image signal and an image signal which has previously been stored, and either one of the input image signal and the newly formed image signal is selectively stored again. It becomes thereby possible to instantaneously store the input image signal whenever necessary.

Abstract: In a video camera having an image sensor for converting an object image into a video signal, a viewfinder for visualizing the object image and a power source, waste of electric energy is prevented by controlling the supply of power to the viewfinder by detecting the access or non-access of the eye of a photographer to the viewfinder. Waste of electric energy is further prevented by controlling the power supply to the image sensor by detecting the state of the access of the eye to the viewfinder. In a case where the video camera is provided with a recorder for recording the video signal on a recording medium, waste of the recording medium is prevented by detecting the access or non-access of the eye to the viewfinder and by inhibiting a recording action of the recorder according to the result of detection, so that unintended meaningless shooting can be prevented.