In a blood pressure measuring system in which a pressure signal comprised of both applied pressure and pulsatile pressure is detected and subsequently filtered to separate the pulsatile pressure component, circuitry is provided to minimize start-up transients in the separated signal. Such start-up transients, which normally persist for some time after start-up as a result of the AC time constants of the filters, are otherwise capable of generating erroneous measurements. The circuitry initialize...

Adaptive control systems are brought to a predetermined reference state with respect to a plurality of attenuation coefficients by taking the signal at a preselected reference location rather than the normalized overall output as the signal to be approximated. In this way the adaptive process brings all variable subsystem attenuators to base level settings and the reference attenuator to a normalized level setting in response to an arbitrary input.

A method of providing an initial lattice containing magnetic bubble domains in a film is disclosed. The method includes a first step of providing a confinement area in a film to contain magnetic domains, a second step of applying an AC in-plane magnetic field to form a plurality of rows of substantially perfect parallel stripe domains, and a third step of cutting the stripe domains into bubbles to form a substantially perfect lattice containing bubble domains.

A reset initialization structure and method is described. A power on reset pulse is utilized to force the state of system reset during intervals of Vcc which otherwise would result in indeterminate reset states. Operation is adaptable to include all DC power systems. The reset initialization structure provides operational protection during power up and power down conditions.

An initialization circuit for a dynamic memory element in a data processing system. The dynamic memory element comprises plural storage modules and a refreshing cycle counter that addresses individual storage locations in said modules in sequence. Address decoding circuitry normally enables a transfer with only one storage module at a time. During initialization, however, the initialization circuit forces the address decoding circuitry to identify all storage modules simultaneously and forces a ...

When an unexposed filmstrip is advanced several frame widths in a camera to position the first available frame for exposure, a frame counter is changed from an original empty setting to a "1" setting. According to the invention, a visible indication is provided in response to the frame counter being changed to its "1" setting which confirms that the first frame is positioned for exposure. This is done to reassure the photographer that proper film winding and film initialization have occurred.

Apparatus for use with a fluorescent light dimming circuit to delay the application of power to the lamp for a first time period sufficient to allow the electronic components to stabilize and thereafter to delay any dimming signal to the lamp and, instead, apply full power to the lamp for a time period sufficient to allow the filament of the lamp to warm up.

A rotating magnetic memory, such as a disk drive using sector servo information, is initialized with servo information by first using the dedicated product head assembly, including transducers and the mounting and accessing mechanisms associated therewith, to write on the innermost and outermost data tracks, following which the tracks written by each transducer are read using a precision servowriter mechanism which is then positioned to duplicate the access path of the product head assembly and ...

A data processing system including a data cache with the capability to selectively zero the contents of the data cache. The invention includes a multiplexor arranged to provide a parallel data output that is greater than the parallel data input from either a central processing unit or from a memory that are each connected to access the data cache. This multiplexor is selectively controlled to provide a parallel data output of zeroes upon the decoding of a specific zeroing instruction.

A printer control system which enables the using application program to automatically selectively alter printer default parameters, to automatically selectively delete previously downloaded fonts and macros, and to enable the printer to operate from one of several datastream formats. The system allows the printer to initialize default parameters for a succeeding job during the printing of a current job as long as the datastream format is unchanged, and allows the deletion of downloaded fonts as ...