摘要:
A method for defining a collection of digital media content for playback using a digital media player where (a) the collection is defined using specific criteria; and (b) the collection is not static but can alter or grow even after being made available to the digital media player; and (c) the said digital media files form a subset of a catalogue of digital media files available for the digital media player to play.
摘要:
Synchronising digital media content to a device is achieved using the following steps: (a) identifying a digital media collection linked to a given user; (b) analysing the content of the digital media collection to derive a “taste signature” for that user; (c) identifying, based on the “taste signature” analysis, the priority order in which media content files are to be provided to the device during a synchronisation; (d) providing one or more media content files to the device during the synchronisation.
摘要:
The present relates to a sidelite assembly having first and second panels and a window. Each of the panels has an inner edge extending outwardly from a major planar portion and surrounding an opening. The inner edge includes a first portion having a ridge extending outwardly from a distal end thereof and a second portion having a channel extending inwardly from the distal end. An outer edge extends outwardly from the major planar portion and adjacent a periphery thereof, and includes a first portion having a ridge extending outwardly from a distal end thereof and a second portion having a channel extending inwardly from the distal end. The ridges of the first panel are aligned with and received in the channels of the second panel. The window is disposed within the opening.
摘要:
A data recording disk drive has one or more capacitive sensors for sensing out-of-plane vibration of the disk or disks. The sensors are attached to a support structure that is attached to the disk drive housing. Each sensor is associated with a disk and faces a surface of the disk near the outer perimeter of the disk and close to the recording head. The support structure can be made of a metal or a high-strength plastic and can be a separate structure mounted to the housing, or integrated as part of the single-piece housing casting. If it is metallic, as would be the case if it were integrated with the housing, then layers of insulating material separate the sensors from the support structure. A support structure that serves other functions in the disk drive, such as a support for air dams that extend between the disks, can also function as the support structure for the capacitive sensors.
摘要:
A liquid cleaning composition and a solid state catalyst are provided in combination. The solid state catalyst causes a chemical reaction in the liquid cleaning composition, when the liquid cleaning composition is brought into contact with it. The chemical reaction may increase the oxidising power of the liquid cleaning composition, or change its pH, or cause gas evolution, or release heat.
摘要:
A magnetic recording disk drive has a disturbance sensor and a disturbance frequency identifier that are used to adjust the frequency of a peak filter as the disturbance frequency changes. The sensor and the frequency identifier are separate from the servo control loop and thus do not rely on the head position error signal (PES) to predict the disturbance frequency. The adjustable peak filter is coupled in parallel with the servo feedback controller. The peak filter modifies the open loop transfer function and the error rejection function of the servo control loop to provide a higher rejection at the identified frequency. The peak filter may be switched out of or uncoupled from the servo feedback controller during track-seeking or as desired, depending on the amplitude of the sensor signal or the amplitude of the PES.
摘要:
A data recording disk drive has one or more capacitive sensors for sensing out-of-plane vibration of the disk or disks. The sensors are attached to a support structure that is attached to the disk drive housing. Each sensor is associated with a disk and faces a surface of the disk near the outer perimeter of the disk and close to the recording head. The support structure can be made of a metal or a high-strength plastic and can be a separate structure mounted to the housing, or integrated as part of the single-piece housing casting. If it is metallic, as would be the case if it were integrated with the housing, then layers of insulating material separate the sensors from the support structure. A support structure that serves other functions in the disk drive can also function as the support structure for the capacitive sensors.
摘要:
A disk drive with a dual-stage actuator has a servo control system with two controllers. One controller is a dual-stage controller that simultaneously generates a primary actuator control signal and a secondary actuator control signal, and uses a degraded-stability primary actuator controller design with high low-frequency open-loop gain and a secondary actuator controller design that provides stability and high mid-frequency to high-frequency open-loop gain resulting in increased bandwidth. The other controller is a single-stage controller that generates only a primary actuator control signal and uses a stable VCM-only controller design. The single-stage controller is selected if failure of the secondary actuator is detected. Failure of the secondary actuator is detected either by providing a model of the dynamic response of the primary and secondary actuators and comparing the modeled head-position with the measured head-position, or by measuring the position of the secondary actuator relative to the primary actuator with a relative-position sensor and comparing the relative position to a modeled position of the secondary actuator.
摘要:
A portable communication device includes a speaker enclosure having a speaker and a plurality of telescoping nested shells moveable between a collapsed configuration and an expanded configuration. The shells have a top and bottom surface and interlocking sidewalls such that when the enclosure is deployed into an expanded configuration the shells form a rigid enclosure with a substantially sealed acoustic space therein. The space tunes an acoustic compliance for the speaker so as to improve broadband frequency response whether the communication device is using a privacy or speakerphone mode of operation.
摘要:
A covering system includes a tarp made of an elastic membrane and a plurality of tarp fastening hooks. The fastening hooks allow the elastic membrane to be stretched over valuables and affixed to environmental anchors so that creases and puddle-enabling pockets in the membrane are eliminated. The fastening hooks clamp onto the elastic membrane and hook onto the environmental anchors to cause tension in the membrane. The clamping forces of the tarp fasteners are inherently increased in proportion to the tension in the clamped membrane.