Matches 151 - 200 out of 219 < 1 2 3 4 5 >
Match Document Document Title
4974096 Photofinishing process with film-to-video printer using dedicated magnetic tracks on film  
A virtually transparent magnetic layer is included as an additional layer in a color negative film. Information exchange between various users of the film--such as the camera user, the dealer, and...
4972068 Retrieval apparatus readily adaptable for use with various types of recording media  
A retrieval apparatus for automatically retrieving a desired image on a recording medium having an image and information for retrieving the image, wherein a retrieval operation can be performed...
4963722 Method of storing a consumed amount in a card memory  
A new data recording method is provided in which a consumed amount of predetermined value is recorded in a card memory. Two recording areas are provided in a card memory. The first recording area...
4960982 IC card with secure mass storage memory  
An information recording system utilizing an IC card having an onboard microprocessor, an onboard semiconductor memory which can be accessed from outside the card only by way of the microprocessor,...
4916681 Apparatus for, and method of, recording undivided compositions in undivided form on a two-sided recording medium  
A CD system in which position information of different pieces recorded on the CD is used to calculate how many of the pieces can be recorded on one side of a tape. When the maximum number of...
4905215 System for reading information from two storage layers of an optical disk in different manners  
An information-reproducing system for reading information from a plurality of storage layers of an optical disk. The system includes a light source for irradiating the optical disk with a...
4901303 Photo-electro-magnetic disc device  
A photo-electro-magnetic disc device has a photo-electro-magnetic disc accommodated in a disc cartridge load as a unit into cartridge holder loaded in the disc device. The cartridge holder with the...
4883950 Composite magnetic and optical head  
A composite magnetic and optical head comprises a magnetic sensor including a magnetic core which is adapted to detect a magnetic pattern recorded on a record medium; an optical sensor including a...
4872151 Compact disc player capable of playing plural selections recorded on a compact disc in a preselected sequence  
A compact disc having digitally encoded, reproducible data recorded in tracks on a playing side and having an editing device for storing order of play data to control the sequence in which the...
4868373 Memory card comprising an optical memory disc and microelectronic memory component, and apparatus for transferring information to and from such card  
Apparatus for transferring data and other information between a data processing unit and a rectangular memory card which includes an optically readable data memory unit having a succession of...
4866690 Vibration imparted focus search devices in an optical type disc playback device  
A focus search device in an optical type disc playback device comprises an optical system for reading a signal of an optical type disc such as a video disc and a digital audio disc, an optical...
4858218 Optical recording medium and reproducing apparatus  
Apparatus for reproducing recorded information applies a linearly polarized light beam to a recording medium having first and second recorded information tracks. The recording medium is formed so...
4843494 Data storage apparatus using optical servo tracks  
A magnetic data storage system for use with a double sided disk in which a prerecorded pattern of opaque optical lines is used to define the tracks in which magnetic data is to be stored. A...
4841503 System for recording information from one recording medium onto a reversing cassette tape recording medium without loss of information during a reversing operation  
The present invention intends to record the information which was divisionally recorded on a disk onto a recording medium without a loss of information. The operation of a disk reproducing...
4839875 Technique for automatic tracking of cassette rentals and managing of information related thereto  
A rental control system for controlling the rent and return of cassettes is disclosed. Each cassette internally contains an article such as a recorded information medium, with an IC circuit for...
4831608 Multi-layer high density information recording carrier having a non-alkali inorganic glass protective layer  
An optical information recording carrier comprising a substrate made of transparent plastic, a high density information recording layer formed on said substrate, and a thin film layer made of...
4823205 Capacitive sensor for head positioning in magnetic recording disk files  
A capacitive sensor for detecting capacitive contrast servo information on a disk in a data recording disk file includes a center-tapped inductor connected to a high frequency oscillator, a sensing...
4817075 Program selection for a digital audio disk  
A digital audio player in which the pieces of music are played according to a program. The program is selected so that the total playing time does not exceed a set period of time. The selection is...
4816657 Method and device for characterizing and identifying falsification-proof data supports  
The method of characterizing and identifying data supports such as value or identity cards in view of protection against falsification, imitation or duplication, comprises measurement of physical...
4788671 Information recording and reproducing apparatus for effecting simultaneous recording and reproduction but at different rates  
There is disclosed an information recording and reproducing apparatus which is provided with a disk-shaped recording medium having a recording face allowing information recording and reproduction...
4779145 Record member for magnetic and optical recording  
An apparatus and method for magnetically recording and reproducing information on closely spaced tracks of a magnetic recording member, such as a magnetic record card, tape, disc or other form of...
4737877 Structure to provide optical and capacitive contrast on magnetic recording disk  
A magnetic recording disk is formed on a rigid aluminum substrate coated with a polymeric dielectric layer. A thin film metallic position-indicating track is applied to the upper surface of the...
4680742 Magneto-optical recording element  
In a magneto-optical recording element comprising a substrate, a magnetic layer and a dielectric layer, the dielectric layer is formed by deposition of a composition comprising Si 3 N 4 and a...
4672600 Optical disc having protective cover  
An optical disc assembly has an optical disc and a protective cover. The optical disc has a surface adapted to have optically recorded thereon data consisting of a series of laser ablated pits...
4651313 Method and apparatus for writing information on processed photographic film  
A system and a method for applying a sound track to cinematic film by means of a modulated laser beam.
4648087 Capacitive sensing employing thin film inductors  
A capacitive variation sensor includes one or more elements providing inductive reactance in the form of thin film coils. This enables a capacitive variation sensor to be integrated on a substrate...
4641203 Apparatus for storing and relating visual data and computer information  
A system which combines a video tape recorder with a computer in such a manner that these two components each automatically record and display where related information is stored in its own...
4639906 Magnetic recording on tracking controlled grooveless medium having magnetic and capacitance properties  
The lateral position of a magnetic head is controlled in response to tracking information derived from an adjacent guide track formed by a series of minute pits on a grooveless recording medium...
4633451 Optical servo for magnetic disks  
The surface of a magnetic recording disk is encoded with optically sensed indicia, which is employed to control track following of the read/write slider head along a track on a magnetic recording...
4614983 Automatic music playing apparatus  
In an automatic music playing apparatus, musical data entered at a keyboard are temporarily stored in a RAM and are sequentially recorded on a magnetic tape. The RAM has a memory capacity larger...
4610009 Writing, erasing and readout system for a magneto-optic recording medium  
A writing, erasing and readout system for a magneto-optic recording medium capable of achieving switching rates approaching the laser pulse rate, including plural diode lasers operating through a...
4609812 Prerecorded dual strip data storage card  
A data storage card having spaced apart data strips. The card is wallet-size and preferably the strips run parallel to the lengthwise dimension of the card. One strip is made of a high capacity...
4587579 System for position detection on a rotating disk  
An information reading/writing head is positioned to follow data tracks that are formed concentrically on a magnetic recording disk. A set of spiral radial position-indicating markings if formed...
4561032 Magnetooptic reproducing device  
In a magnetooptic reproducing device wherein a light beam polarized in a predetermined direction is incident on a magnetic recording medium and signals recorded on the recording medium are...
4556597 Ion doped servo pattern for magnetic recording disk  
A magnetic recording disk substrate is provided with a capacitive servo pattern by implanting dopant material in the substrate to modify the substrate conductivity in a desired servo pattern.
4554591 Reproducible image and information bearing record  
A reproducible image and information bearing medium, termed herein as a photorecord, includes a visible image bearing media, such as a photographic print, negative, transparency or the like, and an...
4523305 Magnetically recordable label for mechanically-defined information-bearing discs  
There is described, among other things, an accessory for a phonograph record disc which has a center hole axially of a label portion of the disc. The accessory comprises a sheet which is of...
4490747 Apparatus for filing picture information  
A main control unit is connected through a selection unit to a magnetic tape memory device and an optical disk memory device. Picture information of a document which is subject to correction or...
4425023 Beam spot scanning device  
A device for scanning a beam spot. The device has a light deflecting portion and a light condensing thin film lens formed on a thin film waveguide path. In this device, a chirped signal is applied...
4417290 Multi-layer magneto-optical recording medium  
A multi-layer magneto-optical recording medium is constructed by placing a transparent protective film upon a magneto-optical recording medium wherein the easy axis of magnetization is provided...
4412264 Magneto-optic recording medium  
Disclosed is a magneto-optic recording medium to which magnetic Kerr effect is applied and characterized by the tracking guide on an even surface free from disorder of linear polarization. Since...
4371894 Video disc transducer system and method  
A video disc record having a spiral video record track which can provide reproduced video signals with a desired frame rate such as thirty frames per second while the disc record is rotated at a...
4359607 Telephone answering apparatus with solid state and dynamic tape storage  
A telephone has a built-in answering device comprising an outgoing message store and a control system programmable by pushbuttons for controlling the operational condition and sequence of the...
4320486 Transferring information signals from a first to a second recording medium  
A method and apparatus are disclosed for achieving improved efficiency and economy in the transfer of information signals from a first to a second recording medium utilizing an optical storage...
4123788 Magnetic information carrier with optical servo tracks and apparatus for reading and writing the same  
A system for the position control of a write-read head for information carriers with a magnetic storage layer, having optical servo tracks. The servo tracks consist of periodically interrupted...
4108365 Coin-operated recording machine  
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...
4073495 Advancement of stuck phonograph needles  
To advance a "stuck" phonograph needle, a solenoid is mounted in or on the tone arm so that movement of the plunger causes an impact on the arm tending to move the arm upwardly and forwardly (i.e....
4056712 Wear compensating optical/magnetic transducer  
A wear compensating transducer is provided for reading optical and magnetic data from documents comprising a magnetic read head with a group of optical fibers passing through the reluctance gap and...
4029944 Data transducer  
An optical and magnetic data transducer is provided comprising a magnetic reluctance aperture which is split into two sections with an optical reading aperture disposed generally therebetween. This...
3863124 AERODYNAMIC SPACING CONTROL APPARATUS FOR MAINTAINING A DESIRED SPACING BETWEEN A SIGNAL TRANSDUCER AND A RECORDING SURFACE BY SENSING ELECTRICAL NOISE  
Spacing control apparatus for maintaining the spacing between a signal transducer and a magnetic recording surface. A spacing control device having a surface which is deformable in a direction...
Matches 151 - 200 out of 219 < 1 2 3 4 5 >