Sick | Stegmann Gmbh

Thomson Licensing

Atlantic Zeiser Gmbh

Baumer Ivo Gmbh & Co. Kg

Stefan Basler

David Hopp

Reinhold Mutschler

Karl-Heinz Wohlfahrt

Stefan Schneider

Trevor Stewart

Tilo Sperling

Daniel Ritzmann

Dominik Dilger

The invention relates to an angular encoder () for monitoring the angular position of a rotating shaft (), with a modulator () which can be positioned on the rotating shaft in order to provide a signal which changes as a function of the angular position of the rotating shaft (), and with a receiver () for the reception of the signal which changes as a function of the angular position of the rotating shaft (), in which the receiver () and the modulator () are positioned in such a way as to be thermally insulated from each other, so that the transfer of heat from the modulator () to the receiver () is impeded, while thermal insulation is achieved at least in part by a thermally insulating separator (), which is positioned between the modulator (), on the one hand, and the transmitter () and/or the receiver (), on the other hand. The invention further relates to a drive system () with an angular encoder () of the type described.

Angular encoder and drive system with an angular encoder

The invention relates to a transmission and reception unit for the detection of an angle of rotation comprising a light transmitter (), a light receiver () and a transparent support () which is arranged therebetween and which lies areally on the light receiver () and covers it, wherein the light transmitter () is attached to the support () and irradiates in a direction () away from the light receiver (), wherein the light transmitter () is arranged centrally above the light receiver () such that received light () can be incident past the light transmitter () on the light receiver () and to a rotary encoder comprising such a unit.

Transmission and reception unit and rotary encoder comprising same

An apparatus for position determination has an optical scanning unit which is to be moved relative to a surface and which includes an image sensor for detecting light intensity patterns of light which is reflected by the surface. The apparatus furthermore has an electronic processing unit which is associated with the image sensor and configured to determine a traveled movement path and/or a movement speed of the optical scanning unit relative to the surface from a difference between light intensity patterns detected after one another in time. A further processing unit is configured to produce an intensity correlated signal which correlates with the intensity of the light reflected by the surface. An evaluation device is associated with the image sensor and is configured to recognize a graphical code pattern located on the surface with reference to the intensity correlated signal and to read out information from the code pattern.

Apparatus and method for position determination

Device for measuring the rotating angle of two objects rotating in relation to each other, with a transmitter which is assigned to one of the objects and which emits light that is either polarized or becomes polarized by means of a polarization filter, and with a polarization-sensitive analyzer such that the transmitter and the analyzer rotate relative to each other as dependent on the rotating angle, and with a receiver which measures the intensity of light passing through the analyzer in order to create a signal that is dependent on the rotating angle, where a magnetized element is positioned on one of the objects and a sensor for detecting a magnetic field is positioned on the other object.

Device for measuring the angle of rotation of two objects rotating in relation to each other

The present invention relates to an apparatus for reading from and/or writing to optical recording media capable of playback of an optical recording medium based on one single focus search cycle. The apparatus distinguishes between the types of optical recording media on the basis of the focus error signal and the data signal obtainable during focus search operation. An S-CurveOK signal, derived from the focus error signal, is the indication whether at all an optical medium is loaded. When a FocusOK signal, derived from the data signal, is active with dedicated settings for a high-reflectivity medium, this means that a high-reflectivity medium is loaded. However, when the FocusOK signal is not active, the apparatus deduces that a low-reflectivity medium is loaded. The operation mode for the second type of optical recording medium is adapted during the focus search cycle based on the combination of the S-CurveOK and FocusOK signals. The switching of the settings is performed before a focus search cycle has been completed. Hence, only one focus search cycle is required to find the focus point for both high- and low-reflectivity media settings.

Apparatus and method for reading from and/or writing to optical recording media

An integrated circuit having a generic communication interface, the integrated circuit comprising a primary processing unit and at least a first and a second communication interface for the primary processing unit for communicating in accordance with at least a first and a second communication protocol, characterized in that a set of registers of the communication interface are arranged such that a specific register functionality is accessible independently of a selection of the first or the second communication interface.

Growing community of inventors

Brigachtal, Germany

Stefan Basler