Hand-held Patents (Class 360/117)
  • Patent number: 6577458
    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.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: June 10, 2003
    Inventor: Richard Paul Day
  • Patent number: 5258603
    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.
    Type: Grant
    Filed: July 5, 1991
    Date of Patent: November 2, 1993
    Assignee: Ultrakust Electronic GmbH
    Inventors: Alfred Bohm, Wilhelm Binder
  • Patent number: 4687962
    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.
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: August 18, 1987
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventor: Lawrence E. Elbert
  • Patent number: 4328519
    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.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: May 4, 1982
    Assignee: E M I Limited
    Inventor: Lewis J. Way
  • Patent number: 4128851
    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.
    Type: Grant
    Filed: April 29, 1977
    Date of Patent: December 5, 1978
    Inventor: Bruce S. Sedley
  • Patent number: 4101905
    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
  • Patent number: 4044393
    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.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: August 23, 1977
    Assignee: Upaya, Inc.
    Inventor: Charles R. Budrose