Abstract: A content sharing management system and an associated method for allowing a subscriber of a media platform to share media content available on the media platform as a gift or as a recommendation to a non-subscriber of the media platform is provided. The content sharing management system allows the non-subscriber to pay and consume only a recommended media content rather than needing to pay a hefty yearly subscription fee, thus enabling significant cost savings. The content sharing management system increases a subscription revenue of the media platform, and provides the subscriber with incentives for sharing media content to the non-subscriber. The content sharing management system further ensures that only the non-subscriber who purchased a particular media content or to whom the media content is gifted can access the media content via an associated secured access link, and prevents other non-subscribers from accessing the media content via the secured access link.

Abstract: A method for automatic navigation and parking of a vehicle (202) in a tight parking space using a navigation system (200) is provided. The method includes identifying a vacant slot (406C) in a designated area (204) and stopping the vehicle (202) at a current position (412) within the designated area (204) upon identifying the vacant slot (406C). The method further includes determining a linear distance by which the vehicle (202) has to initially move from the current position (412) to a start point (426) for ultimately reaching a destination point (418) within the vacant slot (406C) via a middle point (438) and a tangential point (422). The navigation system (200) determines the linear distance based on a horizontal distance between the tangential point (422) and a collinear point (436) and one or more coordinates of the tangential point (422), the start point (426), and the current position (412).

Abstract: A motor controller (100) is provided for smooth operation of an electric motor (102), which mitigates torque ripple, noise and vibration effects, and increases a life span of the motor (102). The motor controller (100) includes a speed controller (120), current transformation units (128 and 130), a current controller (132), and a pulse width modulation (PWM) signal generator (134). The current controller (132) determines a duty cycle of PWM gate signals used for controlling a rotor (104) speed within a particular sector (302A) of the motor (102) based on a reference quadrature-axis current and an actual quadrature-axis current. The PWM signal generator generates the PWM gate signals having the determined duty cycle, controls the rotor (104) speed, and incrementally varies a current speed of the motor (102) to achieve a target speed by modulating operations of a specific pair of inverter switches (502C and 502E) using the PWM gate signals.

Abstract: A dispensing device is provided to dispense a designated amount of a material on every dose delivery operation. The dispensing device includes a thumb pad, a cam drum coupled to the thumb pad, and a pawl nut comprising a one-way pawl. The thumb pad may be pulled out in a direction away from a distal end of the dispensing device for setting a dose of the material to be dispensed out and may be pushed in towards the distal end for delivering the dose. The cam drum includes a plurality of linear cam profiles and a plurality of helical cam profiles that may be disposed on a surface of the cam drum. The one-way pawl may engage with a ratchet disposed at a distal end of the cam drum and may prevent a rotation of the cam drum in an undesired direction.

Abstract: A dispensing device (102) is provided to dispense a designated amount of material on every dose delivery operation. The dispensing device (102) includes a thumb pad (202) and a cam drum (204) that is coupled to the thumb pad (202). The thumb pad (202) is configured to be pulled out towards a proximal end (104) of the dispensing device (102) for setting a dose of a material to be dispensed out and to be pushed in towards a distal end (106) of the dispensing device (102) for delivering the dose. The cam drum (204) includes at least one linear cam profile (402) and at least one helical cam profile (404) that are disposed on a surface of the cam drum (204). The thumb pad (202) is configured to ride on the linear cam profile (402) when setting the dose and on the helical cam profile (404) when delivering the dose.

Abstract: An emulator for a test scenario corresponding to a connected vehicle application is presented. The emulator includes a test bed for testing a device under test (DUT) communicatively coupled to emulated intelligent transportation system (ITS) stations. The test bed also includes a processor configured to emulate the test scenario based on user-defined configuration parameters that define a behavior of the DUT and each of the emulated ITS stations during simulated events in the test scenario. The processor further includes a mobility engine configured to generate and periodically update one or more mobility parameters corresponding to the DUT and the emulated ITS stations based on the corresponding configuration parameters. The test bed further includes a channel emulator, a controller area network (CAN) simulator, and a global navigational satellite system (GNSS) simulator integrated into a single test bed for holistically emulating the test scenario and validating a desired functionality of the DUT.

Abstract: An emulator for a test scenario corresponding to a connected vehicle application is presented. The emulator includes a test bed for testing a device under test (DUT) communicatively coupled to emulated intelligent transportation system (ITS) stations. The test bed also includes a processor configured to emulate the test scenario based on user-defined configuration parameters that define a behavior of the DUT and each of the emulated ITS stations during simulated events in the test scenario. The processor further includes a mobility engine configured to generate and periodically update one or more mobility parameters corresponding to the DUT and the emulated ITS stations based on the corresponding configuration parameters. The test bed further includes a channel emulator, a controller area network (CAN) simulator, and a global navigational satellite system (GNSS) simulator integrated into a single test bed for holistically emulating the test scenario and validating a desired functionality of the DUT.

Abstract: A page mapping system for virtual memory that requires only one address to be continually resident in memory per user subspace and permits the size of a process subspace to be varied dynamically. The system provides a tree of page map pages ("PM pages") with only the very root of the tree (a base address entry) being required to be in physical memory. Depending on the size of the space, the page map includes, as well as the base address entry, a number of paged levels with one PM page at the highest level (to which PM page the base address entry points). The page map entries (PMEs) of the first level PM pages point directly to the physical pages. Each PME in a higher level of the page map points to a PM page at a lower level in the page map, whereupon the page map may grow geometrically from the highest level to the first level. The PMEs for pages or PM pages that are not allocated are so marked.

Abstract: A data processing system in which interleaving among memory controllers may be controlled. The interleaving is carried out on a double-word basis, and the state of the double-word address bit is used to select the bus address of the memory controller in which double-words having that address bit are stored. The dynamically controllable interleaving allows greater flexibility in the design of the memory controllers in a data processing system.

Abstract: A backplane power distribution system characterized by generally uniform current densities so as to be capable of handling very high levels of current. This is achieved with a stepped backplane construction. For example, in a system having, in order, a first conductive layer, a first dielectric layer, a second conductive layer, and a second dielectric layer, the second conductive and dielectric layers extend transversely beyond the first conductive and dielectric layers to present a substantial exposed area of the second conductive layer. Typically, a rectangular metal bus bar is bolted to the backplane to make contact with the exposed area, and power supply connections to the bus bar are made in any convenient manner.

Abstract: A very high speed data bus system for communication among the various functional units that may constitute a large computer system. The bus communication medium comprises a number of line pairs on the backplane, and the bus system comprises a bus control unit for arbitrating requests from a plurality of interface units or ports, there being one such port associated with each functional unit. The functional units are densely packed, that is, mounted in immediately adjacent connectors to define a populated section of the backplane in which all connectors have ports coupled thereto, and one or two unpopulated sections of the backplane in which the connectors are empty. In the populated section, the effective characteristic impedance, designated Z.sub.0 ', is lower than the effective characteristic impedance, designated Z.sub.0, in the unpopulated region. A populated end of the transmission line is resistively terminated with a resistance corresponding to Z.sub.

Abstract: A data bus system utilizing logical transfer channels provides high data rates (even over long distances) and good error detection. The basic function of a transfer channel is to enable temporary assignment of some portion of the bus resource to a specific device and then to allow simple, quick addressing of that device by reference to that channel. There are a relatively small number of transfer channels (say four) that may be attached or detached by the channel processor (IOCP) to meet the data flow requirements. For a transfer to occur between the IOCP (15) and a device (30a, 30b), the IOCP (15) first effects an "attach" operation to assign the device (30a, 30b) a transfer channel for the duration of the transfer. Thereafter, the IOCP (15) allocates the bus cycles among the currently attached transfer channels according to any desired priority scheme, subject to the constraint that the device on a transfer channel be ready to send or receive data before that transfer channel may be granted cycles.

Abstract: A disk file management system for use in a data processing system that includes at least one disk drive. The disk space is organized on the basis of logical cylinders, with each logical cylinder including a plurality of disk pages and a cylinder control block ("CCB"). Each entry in the CCB corresponds to a page in the CCB's cylinder. Depending on whether a page is allocated to a file or not, the corresponding CCB entry is a file map entry for a file to which the page is allocated or an entry in a free space map. For a given file, each file map entry includes up to two pointers so that the totality of page map entries for the file defines an unbalanced binary tree structure that consists of a sequence of balanced binary trees of increasing size. The free space map for a given cylinder is preferably a chained free space list.

Abstract: Fully synchronous operation is provided by the use of separate frame and clock signals in each of the two directions relative to the IOCP, with all these signals controlled by the IOCP. The transmit (outbound) clock and frame signals (TCLK and TFRM) are simply sent on two lines from the IOCP to a bus terminator at the far end with the devices connecting to these lines in sequence. The receive (inbound) clock and frame signals (RCLK and RFRM) also originate at the IOCP, but their lines go directly to the far end where they are turned around and sent back to the IOCP with the devices being coupled to these lines in the reverse sequence. This provides a pair of signals that travel toward the IOCP but are still controlled by it for timing the incoming data.

Abstract: In a high speed data bus system, each functional unit has an associated port which operates to accept all related information that makes up a communication, or if this cannot be done, to accept none of the information. More particularly, an information transfer, depending on its nature, may comprise one BIQ or more than one BIQ (a "BIQ" is a bus information quantum which is placed on the bus for one bus cycle). To implement the indivisibility of multiple-BIQ transfers, the control logic for each port includes screening circuitry responsive to the state of the port's input buffers, and further responsive to flags from the functional unit for selectively accepting or rejecting BIQ's, and further includes screening constraint circuitry to ensure that the port accepts all or none of the BIQ's that make up the transfer. Depending on the flag, the rejection may be total, or may apply only to a designated class of transfers (for example, operations).

Abstract: A backplane power distribution system characterized by generally uniform current densities so as to be capable of handling very high levels of current. This is achieved with a stepped backplane construction. For example, in a system having, in order, a first conductive layer, a first dielectric layer, a second conductive layer, and a second dielectric layer, the second conductive and dielectric layers extend transversely beyond the first conductive and dielectric layers to present a substantial exposed area of the second conductive layer. Typically, a rectangular metal bus bar is bolted to the backplane to make contact with the exposed area, and power supply connections to the bus bar are made in any convenient manner. The backplane is preferably first laminated with all layers coextensive, and portions of the first conductive and dielectric layers then removed by milling.