Abstract: Connector inserts and receptacles that provide signal paths having desired impedance characteristics. One example may provide a connector system having a connector insert and a connector receptacle. Contacts in the connector insert may form signal paths with corresponding contacts in the connector receptacle. Additional traces in the connector insert and receptacle may be part of these signal paths. The signal paths may have a target or a desired impedance along their lengths such that the power paths electrically appear as transmission lines. Constraints on physical dimensions of the connector insert and connector receptacle contacts may result in variations in impedance along the signal paths. Accordingly, embodiments of the present invention may provide structures to reduce these variations, to compensate for these variations, or a combination thereof.

Abstract: A circuit for driving ultrasound transducers uses a sample-and-hold circuit to sample multiple sample periods of a transducer driving waveform, and uses the samples to modify drive parameters. Use of multiple sample periods enables independent measurement and adjustment of different portions of the transducer driving waveform to ensure mirror symmetry.

Abstract: Connector receptacles having protective structures for connector contacts. One example may provide a connector receptacle having one or more contacts that are reinforced with a protective piece around a portion of the contact. Another example may provide a connector receptacle having two or more contacts reinforced with adjacent protective pieces to provide additional protective reinforcement. Another example may provide a connector receptacle having two or more contacts reinforced with interlocking protective pieces. These protective pieces may protect contacts in a connector receptacle from damage when a device, module, or connector insert is inserted into the connector receptacle at an oblique angle, when a device, module, or insert is stressed while in the receptacle, or when a device, module, or insert is removed from the receptacle at an oblique angle.

Abstract: Structures, methods, and apparatus that provide connector receptacles that have a reduced tendency to scratch and otherwise mar connector inserts, have an aesthetically-pleasing appearance, and have an improved tactile response when inserts are inserted. Various examples reduce scratches and wear by utilizing domes, cylinders, balls, or other structures as finger contacts in a connector receptacle. Another example provides aesthetically-pleasing connector receptacle enclosures by forming receptacle enclosures using the same type of material, or material having the same or similar color or texture, as is used for enclosing the electronic device that includes the receptacle. Another example provides an aesthetically-pleasing receptacle enclosure by forming receptacle enclosures that are, in part or in whole, contiguous or formed with the housing. Another embodiment provides a connector receptacle having a housing where a portion of the housing has been removed to save space.

Abstract: Connector systems may include a connector receptacle and connector plug or insert. The connector receptacle may include a tongue. A first plurality of contacts may be formed on a top surface of the tongue. A first ground pad may be located on a top surface of tongue, and a shield may be formed around the tongue. The connector insert may include a housing and a conductive shield around the housing behind a leading edge of the connector insert. A front edge of the shield may be folded into an opening at the leading edge. In other examples, the receptacle shield may include one or more fingers. These fingers may contact the connector insert shield to form a ground path. One or more of these fingers may engage openings in the insert shield to provide a retention force between the connector insert and receptacle.

Abstract: In one embodiment, a system includes a sensor, the sensor having a free layer, a ferromagnetic spin sink layer spaced from the free layer, the spin sink layer being operative to reduce a spin-induced damping in the free layer during operation of the sensor, and a nonmagnetic spacer layer positioned between the free layer and the spin sink layer, the spacer layer having a long spin-diffusion length.

Abstract: Connector inserts and receptacles that provide signal paths having desired impedance characteristics. One example may provide a connector system having a connector insert and a connector receptacle. Contacts in the connector insert may form signal paths with corresponding contacts in the connector receptacle. Additional traces in the connector insert and receptacle may be part of these signal paths. The signal paths may have a target or a desired impedance along their lengths such that the power paths electrically appear as transmission lines. Constraints on physical dimensions of the connector insert and connector receptacle contacts may result in variations in impedance along the signal paths. Accordingly, embodiments of the present invention may provide structures to reduce these variations, to compensate for these variations, or a combination thereof.

Abstract: A read head is provided with a scissors sensor. The read head may include a bottom magnetic shield, and a first non-magnetic seed layer, a magnetic seed layer, a second non-magnetic seed layer, an antiferromagnetic layer, a coupling layer, a first free magnetic layer, a spacer layer, and a second free magnetic layer positioned above the bottom magnetic shield, in this order. A pair of magnetic side shield layers may be positioned on respective sides of the second free magnetic layer.

Abstract: Connector inserts having a high signal integrity and low insertion loss by shielding signal contacts. One example may provide one or more ground contacts between a front opening and signal pins of a connector insert. These ground contacts may have sufficient lever arm to provide a good contact to a corresponding contact in a connector receptacle. To avoid excessive length in the connector insert, embodiments of the present invention may stack a portion of the ground contact above the signal contacts in the connector insert. To reduce excessive capacitance that would otherwise reduce signal impedance, one or more openings may be formed in the ground contacts. To prevent signal contacts from shorting to a shield through this opening, the opening may be covered by tape. The ground contacts may be positioned to avoid encountering power contacts in the receptacle when the insert is inserted into the receptacle.

Abstract: Low cost ground connections for standard connectors and connectors having reduced pin counts. One example may provide a connector system including a connector insert having a plurality of contacts along a top or bottom, or both top and bottom, of a connector insert, where first contacts in the plurality of contacts may be used to convey power, ground, or data and where second contacts in the plurality of contacts are used for ground. The second contacts may be arranged to have contacting portions that are positioned in the insert at different heights relative to the top or bottom of the connector insert and at different depths relative to a front opening of the connector insert.

Abstract: A magnetic connector system having a durable and reliable construction and a reduced height while maintaining sufficient holding strength. A connector insert may utilize a crimping piece to crimp a braiding of a cable. The crimping piece may be fixed to an attraction plate and a board in the insert for mechanical reliability. Retention clips may be used to fix a shell to the attraction plate. A connector receptacle may employ a magnetically conductive label to improve holding strength.

Abstract: Connector inserts having retention features with good reliability and holding force. These connector inserts may include ground contacts that provide an insertion portion having a reduced length. These connector inserts may be reliable, have an attractive appearance, and be readily manufactured.

Abstract: Connectors that may provide illumination at an opening in order to facilitate the mating to a corresponding connector by a user. The illumination may be generated on a tongue of a connector insert or in a connector receptacle. For connector receptacles, illumination may be guided to illuminate an opening of the connector receptacle, it may be guided out of a front edge of a tongue in the connector receptacle, or it may be guided in other directions. For connector inserts, illumination may be out of a front edge or sides of a tongue in the connector insert, or it may be guided in other directions. The illumination may be colored or patterned to convey information to a user. Other examples may include a connector system having a connector insert with a light guide to provide illumination from a connector receptacle to an opening in the connector insert where it may be viewed by a user.

Abstract: Connector systems may include a connector receptacle and connector plug or insert. The connector receptacle may include a tongue. The tongue may be formed using a printed circuit board. Contacts may be plated on top and bottom surfaces of the tongue. Retention features may also be located on top and bottom surfaces of tongue. These retention features may be speed bumps or other features. The connector insert may include a leading edge portion formed of plastic, a conductive shield around the insert behind the leasing edge portion, a plurality of spring contacts attached to an inside of the conductive shield, a top row of contacts; and a bottom row of contacts. Other connector receptacles may include a tongue having side ground contacts. The side ground contacts may engage an inside of a plug shield and have contacting portion to fit in openings in the plug shield.

Abstract: A switch assembly includes a switch body defining a switch opening, a dome switch positioned in the switch opening, a film attached to a surface of the switch body and covering the switch opening, and a protrusion extending from the film in an area above the switch opening. The protrusion is configured to transfer a force from a keycap of a key to the dome switch when the keycap is depressed. The dome switch may include an upper dome below the film and a lower dome below the upper dome.

Abstract: A switch assembly includes a switch body defining a switch opening, a dome switch positioned in the switch opening, a film attached to a surface of the switch body and covering the switch opening, and a protrusion extending from the film in an area above the switch opening. The protrusion is configured to transfer a force from a keycap of a key to the dome switch when the keycap is depressed. The dome switch may include an upper dome below the film and a lower dome below the upper dome.

Abstract: A two-dimensional magnetic recording (TDMR) read head with an antiferromagnetic (AFM) layer recessed behind a center shield. The TDMR read head comprises a first read sensor and a center shield over the first read sensor, wherein the center shield has a first thickness at an air-bearing surface (ABS) and a second thickness at a back surface, the first thickness being greater than the second thickness. A ferromagnetic layer is disposed over a portion of the center shield, wherein the ferromagnetic layer is recessed from the ABS. The TDMR read head also includes an antiferromagnetic layer over the ferromagnetic layer and a second read sensor over the antiferromagnetic layer. By recessing the AFM layer away from the ABS, the down-track spacing between read sensors is reduced, thereby improving TDMR read head performance.

Abstract: Connector inserts and receptacles that are robust, easily manufactured, and provide an improved connector performance. One example may provide a connector receptacle having a power contact located in a ground surface. An insulating layer may be placed between the power contact and the ground surface. The ground surface may be curved or flat, or it may have other shapes. Another example may provide a robust connector insert. This connector insert may include a crimping piece that fits over a cable braiding and is crimped. The crimping piece may then be attached to an attraction plate. A cover or shell may be attached to provide further reinforcement. Another example may provide a connector system having a ground contact and a power contact, where the ground contact is a make-first-break-last contact.

Abstract: A magneto-resistive (MR) device and process for making the MR device are disclosed. The MR device has a pinned layer, a spacer layer proximate to the pinned layer, and a free layer proximate to the spacer layer. The free layer comprises a first magnetic layer proximate to the spacer layer, the first magnetic layer having a positive magnetostriction, a laminate magnetic insertion layer proximate to the first magnetic layer, and a second magnetic layer proximate to the magnetic insertion layer, the second magnetic layer having a negative magnetostriction. The laminate magnetic insertion layer has a first magnetic sublayer and a first non-magnetic sublayer proximate to the first magnetic sublayer. With the disclosed laminate magnetic insertion layer, the free layer has a low overall magnetostriction and results in a MR device with a high MR ratio.

Abstract: Structures, methods, and apparatus that provide connector receptacles that have a reduced tendency to scratch and otherwise mar connector inserts, have an aesthetically-pleasing appearance, and have an improved tactile response when inserts are inserted. Various examples reduce scratches and wear by utilizing domes, cylinders, balls, or other structures as finger contacts in a connector receptacle. Another example provides aesthetically-pleasing connector receptacle enclosures by forming receptacle enclosures using the same type of material, or material having the same or similar color or texture, as is used for enclosing the electronic device that includes the receptacle. Another example provides an aesthetically-pleasing receptacle enclosure by forming receptacle enclosures that are, in part or in whole, contiguous or formed with the housing. Another embodiment provides a connector receptacle having a housing where a portion of the housing has been removed to save space.