Somermeyer; Herbert F. - US Patent Attorneys and Agents

Attorney: Somermeyer; Herbert F.

Number of patents: 87
Last date: May 06, 1997

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Number	Title	Issue Date
5627818	Optical disk with marks used for calibrating an optical detector to minimize noise from undesired perturbations in disk surfaces A magnetooptical disk recording device has a far-field detector for detecting radial position of a laser beam with respect to tracks on the disk. The far-field detector has a reference line dividing first and second photo detectors. The reference line is ...	05/06/1997
4956803	Sequentially processing data in a cached data storage system The disclosure relates to sequential performance of a cached data storage subsystem with a minimal control signal processing. Sequential access is first detected by monitoring and examining the quantity of data accessed per unit of data storage (track) ac...	09/11/1990
4916680	Magnetooptic recording member having selectively-reversed erasure directions in predetermined recording areas of the record member In a magnetooptic record member the erasure direction for successive recording areas (sectors) are determined by the direction of magnetization of prior recording. A mark is placed in each sector for identifying its erasure direction. The mark is preferab...	04/10/1990
4914725	Transducer positioning servo mechanisms employing digital and analog circuits A track-seeking system for an optical disk using a velocity control loop with partially-digitized velocity measurement. A quadrature signal is generated based on summing the halves of a position error signal to give directionality to track-crossing counts...	04/03/1990
4731773	Thermally-induced recording with reduced harmonic distortion An optical information-bearing-signal recorder employs thermally-induced recording of ablative, material movement, material phase change, magneto-optic or similar technologies. Synchronous noise in the recording is reduced by employing a heat-inducing ene...	03/15/1988
4649513	Apparatus and method for processing system printing data records on a page printer A method and a system for creating visual displays in a visual display device of data from an input data set. First, at least one of a plurality of stored sources of resource information is selected. Each of these sources is defined by and under the contr...	03/10/1987
4410942	Synchronizing buffered peripheral subsystems to host operations A peripheral device subsystem enables its peripheral devices to operate asynchronously with respect to attaches hosts through the use of managed buffers, new multiple data transfer modes, control and error recovery operations. In a preferred first or buff...	10/18/1983
4406425	Method and apparatus for regulating webs transported in a reel-to-reel web handler A web transport, such as a reel-to-reel magnetic recorder, includes a web regulator between one reel and a transducing station. In a constant tension web transport, web regulator ensures a relatively constant length of web between the transducing station ...	09/27/1983
4403286	Balancing data-processing work loads Data processing workloads are balanced between a plurality of data processing units, such as control units of a peripheral system, based upon tallies of data processing delays. The workloads are arranged in work allocations, such as assignment of peripher...	09/06/1983
4403288	Methods and apparatus for resetting peripheral devices addressable as a plurality of logical devices Direct access storage devices (DASD) are connected to a host via a cache. Each device can be independently addressed by any one of a plurality of addresses, also termed logical devices and exposures. Since operations between DASD and cache are combined fo...	09/06/1983
4396984	Peripheral systems employing multipathing, path and access grouping A data-processing system is connected to a peripheral system by a plurality of channel paths. These channel paths are named as members of path groups. Each path group has one or more channel paths. Within each path group, communications between the data-p...	08/02/1983
4393459	Status reporting with ancillary data Resources shared by plural users supply a busy signal to a requesting user whenever any one of the users has a right of access to the resources. Ancillary data accompanies the busy signal identifying the user having the right of access. The requesting use...	07/12/1983
4380067	Error control in a hierarchical system A hierarchical communication system has multipaths for different levels of the heirarchy, each set of paths is assigned a criticalness to the successful operation of the system. Error rates for all of the paths are monitored. A threshold for defining an u...	04/12/1983
4330803	Disk accessing apparatus and method A disk accessing apparatus and method are disclosed for creating an axial spacing between two adjacent disks of a rotating disk stack. The accessing apparatus is mechanical and operates from one end of the stack of disks with one portion of the apparatus ...	05/18/1982
4321687	Timing pulse generation Clock pulse plural cascade connected counters generate a plurality of patterns. Upon each clock pulse, the patterns in the plurality of counters are captured in a like plurality of registers. Each of the captured counts are then compared with one or more ...	03/23/1982
4318141	Buried servo recording systems and methods A single-gap transducer simultaneously senses recorded control or servo signals and record data signals. A magnetic medium used with this invention is preferably a single layer magnetic medium. The head gap length and pole-tip face length allow different ...	03/02/1982
4314289	Biased pulsed recording systems and methods A short duration pulse is recorded for each transition of a data bit stream. Such short duration pulses are AC bias recorded for enhancing recorder operations. The recording is preferably used with a buried control signal; the system enables simultaneous ...	02/02/1982
4313140	Buried control signal recording systems and method A single gap transducer simultaneously senses recorded control or servo signals and records data signals. A magnetic medium used with this invention is preferably a single coating magnetic medium. During recording, the recording signal is appropriately su...	01/26/1982
4310883	Method and apparatus for assigning data sets to virtual volumes in a mass store In a mass storage system having a multiplicity of storage volumes containing addressable data, the assignment of newly received data sets to the best storage volume is accomplished by determining the best match of the data set to the available volumes. Su...	01/12/1982
4310895	Plural null digital interconnections Apparatus and method for interconnecting a controlling unit and a controlled unit include providing a plurality of operational nulls. One of the nulls is a logically disconnected null; another of the nulls is a logically connected null. All operations pro...	01/12/1982
4298954	Alternating data buffers when one buffer is empty and another buffer is variably full of data A buffer storage apparatus has two buffers alternating between receiving and supplying data signals. The buffer functions are alternated between the buffers when one of the buffers is empty and another one of the buffers has received a predetermined numbe...	11/03/1981
4298897	Buffered recording A forward/backward compatible apparatus and record member achieves multiple density by multiple track widths as well as multiple lineal densities. In a rotating head recorder a single head has a wide write gap followed by a plurality of narrow read gaps. ...	11/03/1981
4287540	Stabilized recording A first signal to be stabilized in a magnetic record member is recorded via a head having a given maximal gap length and pole pieces of high saturation induction. After the first signal is recorded, the magnetic record member is surface erased for stabili...	09/01/1981
4286181	Stepping motor for rotary device A stepping motor mechanism for a rotary device in which one member is indexed linearly and/or rotationally relative to a second rotating member. The indexing member includes at least one portion with a series of equi-distantly spaced ridges and the rotati...	08/25/1981
4251885	Checking programmed controller operation Programmed controllers execute sequences of control functions for controlling a device. External noise can cause controller malfunctions on critically operated devices. Proper sequencing is verified by assigning access key/check codes to particular sequen...	02/17/1981
4250529	Method and apparatus for opening disk packs Method and apparatus for opening stacked disk memory members arranged in a pack for co-rotation and having substantial freedom of axial movement relative to one another, the opening being accomplished by engaging the disk pack with drive means having axia...	02/10/1981
4229774	Self-adapting flow restrictors A record storage apparatus consisting of a stack of co-rotating spaced apart flexible record storage disks are stabilized by circumferentially uniform radially outwardly flowing air under a quiescent operating condition. The record storage disks are norma...	10/21/1980
4213694	Copy production machines Copy production machine having a print mode for making copies under automatic control interruptible by a copy mode, of making copies. In the print mode images to be copied are automatically supplied to a copy production portion. In the print mode, images ...	07/22/1980
4211483	Copy production machines having job separation and collation capabilities A copy production machine selectively interleaves copy separation sheets between successive copy jobs, subjobs or job portions. The copy separation sheets can be from the same copy sheet supply source or from an alternate source. The supplied copy separat...	07/08/1980
4208681	Cartridge type record player having a three position holder A disk, tape, etc. record member is contained in a cartridge or cassette. A cartridge type record player has a movable receptacle for receiving the cartridge. The receptacle has two stable and one momentary positions. A center stable position is a load po...	06/17/1980
4208684	Damper for constant load arm A head mount faithfully follows flexible media perturbations. The head mount consists of a pivoted rigid head support arm controlled by an offset spring having an offset damping and yieldably urging relationship to the rigid arm. The rigid arm acts as a f...	06/17/1980
4208685	Disk storage apparatus having an electrically tuned head-carriage actuator In a signal storage apparatus employing a rotating record disk, the resonant frequency of a head carriage assembly is tuned to the rotational speed of the record disk. The head carriage assembly, in following a record track on the record disk, has to acco...	06/17/1980
4208678	Stabilized rotation of flexible disk files A stack of co-rotating flexible record storage disks is stabilized by maintaining mass flow of stabilizing air within a predetermined range. In a preferred form, mass flow is maintained by sensing both barometric and thermal changes and adjusting the mass...	06/17/1980
4191981	Record storage apparatus employing enhanced transducer positioning servomechanisms A sequentially operated machine employs two positionable members, a movable center selection piston member and a movable transducer member for accessing a record storage member selected by the central piston member. Making the record storage member availa...	03/04/1980
4192003	Signal recovery method and apparatus Signal peaks are identified by measuring the slopes on each side of a signal peak. Each slope measurement is linearized to ascertain a slope angle. Both linearized portions and slope angles are compared to find an intersection of the linearized portions. ...	03/04/1980
4184630	Verifying circuit operation A polynomial based apparatus, such as an error correcting apparatus, is checked by repeatedly supplying test bits to the apparatus. On even cycles, the modulo two sum of the signal contents should be zero, while on odd cycles it should be equal to the pat...	01/22/1980
4185314	Record disk cartridge having eject spring within cartridge A record disc cartridge has a single internal shutter for opening and closing a head access port adjacent a spindle access member in one wall. A further aperture allows the shutter to be actuated to an open position as the cartridge is moved into a playin...	01/22/1980
4167269	Flexible record disk signal storage apparatus Flexible disk record storage apparatus has a chordally perturbed backing plate for inducing a dynamic stiffness in a flexible recording disk rotating immediately adjacent the plate. A head radially movably disposed between the chordal perturbations provid...	09/11/1979
4167041	Status reporting In a plural unit system, particularly of the data processing type, controlled units such as tape drives, constitute status reporting units (SRUs) which report status including error conditions to one or more status analyzing units such as computers (CPUs)...	09/04/1979
4164768	Dual stage flow controller for self-ventilating disk pack A self-ventilating flexible disk pack receives operating air through a plenum chamber which communicates with the atmosphere through a flow controller. The flow controller has primary and secondary flow passages through which the flow of air is controlled...	08/14/1979

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Attorney: Somermeyer; Herbert F.