Abstract: Transmitting via color signals or vertical signals to control a computer's display monitor using software adjustments of the display parameters. A user can vary the display parameters including, for example, the contrast, brightness, horizontal and vertical size and position, inter alia, and transmit other commands and other data using codes transmitted with the color codes, or alternatively, with the vertical synchronization pulses.

Abstract: In a data processor system comprising memory means containing subroutines each having low level instructions with the last instruction being an INTERPRET instruction, and high level language instructions which point to the starting addresses of said subroutines, a hardware high level language interpret capability comprising first and second program counter means which point respectively to said high level language instructions and to said subroutine instructions, and control and timing means responsive to an INTERPRET instruction to load said second program counter means with the subroutine address contained in the high level language instruction pointed to by said first program counter means. Said second program counter means is responsive to said control and timing means to execute the instructions in said subroutine.

Abstract: A system for detecting magnetic field direction comprising a pair of orthogonally positioned rods each having a rectangular shaped BH curve, a switching winding, and detectors for detecting the switching of magnetic polarity of each rod to either of its remanent states. A switching current having a triangularly shaped waveform is supplied through said switching windings to drive said rods between their remanent states at times depending upon their angular relationship with the external magnetic field. Counters record the difference in time, measured from the immediately preceding zero current crossover points between the switching of each rod first to one of its remanent states and then to the other of said states. The time difference in one rod is proportional to the sine of the angle between the external field and said one rod and to the cosine of the angle between the external field and the other said other rod.