Abstract: Not only an image signal of a scene of performance of musical instruments and a sound signal of such performance, but also the performance data of a specific musical instrument are recorded by a video system, and by virtue of a reproduction of this record, the image signal, the sound signal and the performance data are separated from each other. Thus, not only the image from the image signal and the electronically reproduced sound from the sound signal, but also a real automatic playing musical instrument such as player piano corresponding to said specific musical instrument is actually driven to effect a performance, whereby the watcher-listener is also able to listen to the performance sound of a real musical instrument.

Abstract: A central processing unit determines the size of a copying sheet to be used from a document size code read out from an index information recording track of a magnetic tape by a video tape recorder of a document information filing system, and produces copying sheet size data. A copying sheet selecting device is driven according to the copying sheet size data to supply a copying sheet of the size corresponding to the copying sheet size data to a copying device. The copying device reproduces document information corresponding to the index information on the selected copying sheet supplied to it.

Abstract: A magnetically recorded program member for an embroidering machine which includes a plurality of data recording blocks containing control data for at least one of thread change, frame change and applying an applique cloths, the data recording blocks being arranged with non-recorded blocks interposed therebetween, and voice recording blocks having records based on the control data.

Abstract: A process and apparatus are provided for recording electric signals corresponding to piano key operation and for reproducing the piano key operation. The process includes switching a discrete frequency oscillator corresponding to each piano key, algebraically adding the outputs of each oscillator, filtering the algebraic sum of the oscillator outputs through a low pass filter, recording the filtered signal, reproducing said filtered signal through a high pass filter, detecting each frequency in the high pass filtered signal, and energizing an electromechanical device so as to actuate the piano key which had switched the discrete frequency oscillator.

Abstract: A miniature tape recorder with a two-channel magnetic head and a selecting member for selecting one of combinations of channels for recording and reproducing without releasing a record-actuating member and a reproduction-actuating member, which tape recorder can be used to form an inexpensive study machine by connecting it to an outside study unit for using a two-channel study tape, wherein study step cannot proceed unless a student thoroughly understands the answer to the question of one study step.

Abstract: A remote control apparatus is provided for a record/playback device to provide control signals to actuate the device for recording, for playing back or retrieving, and for reversing or rewinding operations. The control signals are derived from separate switches and transmitted along a single signal conductor. A logic circuit responds to the signals on the single conductor to activate different output lines selectively for the different operations. The record/playback device typically is of the type that records and plays back audio information, or that records and projects visual information.

Abstract: Apparatus for automatically printing visible information on the body of a cassette used in a central dictation system is disclosed. The central dictation system includes means for assigning a serial or index number to each cassette upon which dictation has been recorded. Apparatus disclosed herein prints visible indicia of the code on the body of the cassette as it is ejected from the recorder. Another embodiment records a code corresponding to the serial number on the recording medium of each cassette. The second embodiment is associated with a playback apparatus at a central control unit and prints a visible indication of the serial number on a label provided on the cassette in response to the playback head transducing the recorded code.

Abstract: A movable model of an animal is described in which a driving mechanism adapted to operate synchronously with generation of a sound by a control circuit is incorporated in a simulated animal-like body portion formed of a soft foamed urethane block which has been shaped to the external configuration of a human or animal, and an operating end of said driving mechanism is joined to a part of said soft foamed urethane block forming the body portion of the model so as to induce movement of the moving parts of said body portion.

Abstract: Apparatus is provided to permit the control of circuitry within a video game generator including an audio playback device employing an audio tape or phonograph disc having recorded thereon digital data which is decoded and interfaced with the video game generator.

Abstract: Information reproducing and recording apparatus is disclosed which has a tape recorder mechanism, a disc recorder mechanism and an electric circuit for reproducing and recording and in which information obtained from the disc recorder mechanism is recorded on the side of the tape recorder mechanism in the state that the tape recorder mechanism and the disc recorder mechanism are in constant-speed forwarding and reproducing modes of operation, respectively. Switching of the disc recorder from a non-reproducing mode to the reproducing mode of operation is detected and, based on the detecting signal, the tape recorder mechanism is automatically changed over from a stop mode to the constant-speed forwarding mode of operation. Switching of the tape recorder mechanism from the stop mode to the constant-speed forwarding mode of operation is detected and, based on the detecting signal, the disc recorder mechanism is automatically altered from the non-reproducing mode to the reproducing mode of operation.

Abstract: A volume controlled tape and alarm for a tape recorder is disclosed. The tape end alarm is coupled between a microphone and an audio amplifier and includes an automatic gain control circuit for maintaining a constant recording level, an oscillator for generating an audio frequency signal, and a variable volume control resistor for coupling the output of the oscillator circuit to the automatic gain control circuit. The volume of the audio alarm signal can be adjusted by adjusting the position of an externally adjustable knob connected to the variable resistor.

Abstract: An electric control system for a numerically-controlled form-cutting machine is disclosed. The form-cutting machine has two drive motors for moving a cutting tool respectively in an X direction and a Y direction. The control system comprises X-channel and Y-channel program-encoding means for encoding a program for numerically controlling the motion of the cutting tool in the X and Y directions respectively. The control system further comprises a magnetic-tape unit, for example, a cassette recorder, which can record the encoded programs on two tracks of magnetic tape. The control system further comprises X-channel and Y-channel program-decoding means for converting the signals played back from the magnetic-tape unit into signals suitable for controlling the motion of the cutting tool. The control system also includes conductive means interconnecting the components of the system.

Abstract: A first main information signal is recorded in a first track extending longitudinally along one side of a length of magnetic tape and a corresponding first secondary, or control, signal is recorded in a narrow parallel track spaced from the first main track. A second main signal is recorded in a third track within the other half of the tape, and a corresponding second secondary, or control, signal is recorded between the first secondary signal and the first main signal, whereby the two main signals and the two secondary signals are interleaved with each other. The first and second main tracks are equal in width, and the first and second secondary tracks are also equal in width but are much narrower than the first and second main tracks.

Abstract: A first set of digital signals is generated in response to information received from a magnetic tape. The first set of digital signals is stored. A second set of digital signals is generated in response to the first set of stored signals and information received from a punched tape. The second set of digital signals is stored. One or more external devices or peripheral control equipment connected to a plurality of external devices is controlled in response to the second set of stored signals. The second set of stored signals is transmitted in a form for storage on the magnetic tape or the punched tape.

Abstract: A scanning and printing system scans and digitizes graphical information for recording on magnetic tape and also prints graphical information previously stored in digital form on a magnetic tape. Scanning and printing is accomplished by directing a laser beam through a pinhole in an aperture plate and thence through a set of optics, which collimate the beam and scan it across the surface of a graphic medium. For operation as a printer the laser beam is addressed by an acousto-optic modulator, which is positioned between the laser and the aperture plate. The acousto-optic modulator causes a shifting of the laser beam in accordance with digitized data trains representing positive and negative areas in an image to be reproduced. The laser beam is normally blanked out by the aperture plate and is periodically shifted by the acoustic-optic modulator for direction through the pinhole.

Abstract: An apparatus for detecting tape running in a tape recorder includes an AND circuit to which are applied an output signal of a generator which produces an audio signal and an output signal from a tape running detector which detects the running of a magnetic tape and produces a fixed output signal when a tape end is reached. An output signal from the AND circuit which corresponds to the audio signal is applied to a loudspeaker contained within the tape recorder for audibly warning that a tape end has been reached.

Abstract: A continuous primary audio program is periodically interrupted and a programmable source having a secondary program is periodically operated by an automatic electrical control in response to a control signal having a frequency outside of the audio frequency range and supplied by the secondary source. A sensing circuit selectively operates as a resonant amplifier and responds to the control signal to de-activate the secondary program and reinstate the primary program while further initiating a timing sequence by a timing circuit. Cyclic operation is provided by the timing circuit which functions to operatively attenuate the primary program and operate the secondary program after a predetermined duration of time following the control signal.

Abstract: Recording apparatus for "dubbing" (recording from one to the other) onto a customer's magnetic tape cartridge, selected audio and/or video recordings stored in the apparatus. The apparatus includes means for activating the apparatus, means for selecting the desired recordings, means for identifying and storing data representing the selected recordings for tabulating royalties accrued by playing the selected recording, and magnetic tape cartridge receptacle, transport and recording means for the customer's cartridge. The record selection and recording means may be located directly on the record storage and playback machine or at a remote recording station.

Abstract: A counter drive mechanism for use in a tape recorder having a resettable counter includes movable means preferably in the form of a rotatable disc having a tape engaging peripheral surface which abuts the tape such that the disc is rotated as the tape moves. The rotation of the disc is mechanically transferred to the counter to index same. Since the counter is driven in accordance with the movement of the tape, and not by the tape drive mechanism as is conventional, the accuracy of the counter is significantly enhanced. The peripheral surface of the disc is provided with a pair of electrically isolated conductive strips which, when electrically connected by contacting an electrically conductive foil strip on the tape, complete a circuit to energize the counter resetting means such that the counter is automatically reset at the appropriate tape position.

Abstract: Method and apparatus for processing the information content of a pattern drawing in coded form for application to an utilization facility such as a storage device for controlling textile machines. The pattern drawing is scanned line-by-line and point-by-point and the scanned points are projected in enlarged form so that the information content of the scanned points is comprehended by an operator who registers its, by pressing a corresponding information key, first of all in an intermediate storage device of limited capacity, the content of whose stages is made visible in corresponding adjacent fields in an optical indication device. The information of the intermediate storage device is transferred in groups to the storage device as soon as the intermediate storage is filled up.

Abstract: A method of and apparatus for mixing and recording multitrack stereo audio signals from individual audio signals while utilizing the development of analog signals which are indicative of level, etc., converting the signals to digital form for clock controlled processing and reconverting to analog form to actuate mixing control elements.