Abstract: There is provided a system and method for the recordation an audio message, whereby the system converts the recorded message to a digital format, and stores the message on a record medium (18) integrally associated with the system. The record medium (18) with recorded message can be removably affixed to a wide range of objects. The system easily facilitates read, decode, and playback functionality for the recorded message without necessitating removal of the record medium (18) from the object to which it is affixed. Further, the system provides the functionality to store and forward audio messages in digital format to various computer systems (56) and computer-related devices.
Abstract: The invention concerns a reading head with a tapered reading opening and/or a tapered reading stylus for reading bar-type, especially passive magnetic information on a data carrier. A high resolution in reading this information with a high output signal is obtained by tapering the reading opening in direction of the end face of the reading head. The reading head is located in a casing pot and has at least one field plate sensor, on which side remote from the face a permanent magnet is placed with a magnetic shunt to the casing pot.
Abstract: The actual resonant frequency of an ultrasonic horn is tracked actively while the horn is operating in a working environment, such as in a clinical analyzer where the horn is partly immersed in a liquid bath in which a series of liquid-filled cuvettes are passed near the horn to dissolve solid tablets in the cuvettes. The horn is driven initially by a signal of fixed amplitude but at a frequency which is varied between set limits about a nominal resonant frequency. Ultrasonic vibration waves of the horn are sensed and fed back for rectification and peak detection over the scan operation. The peak feed back level is held and a second scan is initiated with the drive signal at the same fixed amplitude. When the rectified feedback signal level substantially attains that of the held peak level, a comparison is determined and control logic acts to lock on the frequency at which the comparison was established for a given operating time period.
Abstract: An apparatus for reading magnetic documents, comprising an inductively wound gapped core forming part of a tuned circuit which is driven at its resonant frequency, and a means for producing an output signal indicative of the quality factor of the tuned circuit.
Abstract: A manually manipulatable magnetic card encoder containing substantially all of the apparatus and wiring required to encode magnetic spots on a magnetic card key or the like. The encoder is relatively small and includes a housing provided with a pistol grip to facilitate manual manipulation of the encoder.
Abstract: A multi-track magnetic recording head is used to record data in human readable form on a magnetic track on a record medium. A viewer, having a viewing window containing microencapsulated ferromagnetic particles, is used to read the data. When the viewing window is placed in operative proximity with the magnetic track, an image corresponding to the data on the track is formed on the viewing window to enable a user of the record medium to read the data thereon. The image on the viewing window is erased after reading by providing relative movement between the viewing window and a magnetic field.
Type:
Grant
Filed:
December 10, 1976
Date of Patent:
July 18, 1978
Assignee:
NCR Corporation
Inventors:
William J. Hale, William R. Horst, Donald A. Walker
Abstract: The device is configured so that it is easily held in the user's hand and thereby guided along a strip of recording tape attached to a card, sheet of paper or plastic sheet and having a predetermined message recorded thereon. The device includes a motor for self-propelling the device at the proper tape recording speed. A transducer is mounted for intimate contact with the recording tape as finger and hand pressure are applied. A visual marker or pointer on the device is used for visually guiding the device along the tape. For use with a blind person an embossed ridge may be provided on the card adjacent the tape to permit proper guidance of the device. When using letter-size sheets or cards, it is preferred that a plurality of tape strips be used, each having a message or other indicia associated therewith.