Abstract: A system for accurately locating upon a surface any number of finite points, recording those locations together with such additional information as is desired to be applied to the surface, and then transferring such recorded information to that surface in defined relation to the recorded point locations. The point locator incorporates a pair of potentiometers positioned to provide output signals representative of both X and Y coordinates, the locating signals being generated responsive to movement of a cursor head connected to the potentiometers through an extensible potentiometer rotating means to thereby actuate one or both potentiometers in amounts representative of a series of given X-Y cursor positions.
Abstract: There is disclosed a method and apparatus for encoding of expression while recording from the keyboard of an electronic player piano wherein the intensity of the music being recorded is reflected in variations in the power of the acoustic waveform produced thereby. There is a delay between the time the key is struck and the time that the note is sounded or heard by the listener. The apparatus measures the changes in power by performing a digital integration of a waveform. The key note or key switch actuations are multiplexed and a serial bit stream of data and stored in a shift register and then combined with the expression data bits to form the data stream which is encoded in a bi-phase encoder to be recorded on tape.
Abstract: An arrangement is described for rapidly and accurately analyzing the movements of a barbell or other weight. The object is positioned in a suitable holder, which is connected by means of a pair of strands to the periphery of a first disc secured to a torsion-biased shaft. The strands extend, intermediate their ends, through opposed ends of the crosspiece of a T-shaped pendulum whose central arm is secured at its free end to a second disc, such second disc being in turn secured to a splined front end of the shaft. A pair of internally toothed racks are carried by the second disc for toothed engagement with the splined end of the shaft, with the racks being confined for movement in mutually perpendicular directions to resolve the motion of the holder and thereby of the object into orthogonal planes. Facilities are provided for recording the separate movements of the first and second racks along a common first coordinate of a recording medium as the medium is advanced along the other coordinate.
Type:
Grant
Filed:
July 2, 1976
Date of Patent:
November 8, 1977
Assignee:
CS na BSFS
Inventors:
Vassil Lazarov Furnadjiev, Boris Krestanov Samardjiev
Abstract: A time accounting system including at least three distinct elements: a magnetic stripped card, a recording clock and a recorder/encoder assembly. The magnetic stripped card is fed into the recording clock which prints and electromagnetically encodes predetermined information such as the date and time upon the card. The card is then output from the recording clock. At the end of a given accounting period, the cards are gathered and stacked in the input portion of the recorder/encoder assembly. The recorder/encoder assembly accepts each card and transfers the information contained onto magnetic tape for direct input to a computer. As each used card is read, the recorder/encoder prints and encodes a new card.
Type:
Grant
Filed:
March 3, 1975
Date of Patent:
April 12, 1977
Inventors:
Howard M. Evans, Jr., Lawrence F. Trodd
Abstract: A flow measurement system wherein liquid to be measured is conducted through a volumeter having a pulse generator, the pulses of the volumeter are applied to an electronic counter, the output values of the counter are stored on a magnetic tape and the stored values are processed in a data processing system.
Abstract: A recording instrument for use in ocean depths and like remote locations and adapted to provide meaningful readings of temperatures and pressure, for example, at such locations over a long period of time without attendance. Analog signals from transducers, which indicate the level of the thing-to-be-measured, are processed to give an averaged digital signal that is then stored on a magnetic tape. The system is battery powered. The instrument detailed is for use at ocean depths where the instrument housing and attachment to a mooring line are of particular importance.
Type:
Grant
Filed:
February 22, 1974
Date of Patent:
January 27, 1976
Assignee:
Massachusetts Institute of Technology
Inventors:
John M. Dahlen, William E. Toth, John T. Shillingford, Jr., John F. McKenna, Jr.