Wiedemar, Germany
Wiedemar, Germany

Sennheiser electronic GmbH & Co. KG is a private German audio company specializing in the design and production of a wide range of both consumer and high fidelity products, including microphones, headphones, telephony accessories, and avionics headsets for consumer, professional, and business applications. Wikipedia.


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Patent
Sennheiser | Date: 2016-09-16

A casing unit is provided that includes a cylindrical peripheral wall portion of quartz or glass, a cover of metal, and a fixing unit configured to fix the casing unit in or to a housing of a hi-fi tube amplifier. Also provided is a hi-fi audio tube amplifier that includes a plurality of tubes configured to amplify audio signals, and a plurality of the afore-mentioned casing units. Each casing unit encloses one tube of the plurality tubes at three sides, and the fixing unit of each casing unit is configured to fix the respective casing unit in or to a housing of the hi-fi audio tube amplifier.


The invention concerns a transport and/or storage container with integrated charging function for rechargeable wireless earphones comprising a container housing, at least one receiving unit for at least partially receiving a rechargeable wireless earphone, and an electrical container charging contact for connecting the transport and/or storage container to an electrical energy source, wherein the receiving unit has an electrical coupling contact cooperating with an electrical earphone charging contact of a rechargeable wireless earphone when it is placed in the receiving unit for recharging and wherein the electrical container charging contact and the electrical coupling contact are in the form of mutually complementary electrical contacts.


Patent
Sennheiser | Date: 2016-07-25

The invention relates to a base station, wireless headset and headband thereto where the headset is powered by a rechargeable battery and where the base station has a cradle and the headset has a cradle-neck, wherein the cradle mount charging output points and the cradle-neck mounts charging input contact points, whereby the headset may be cradled in a charging position to ensure electrical connection between the base station and the rechargeable battery through the electrical contact points; where the wireless headset comprises attachment cites for releasably attachment thereto of the headband to form a headband-headset assembly.


Grant
Agency: Cordis | Branch: H2020 | Program: RIA | Phase: FoF-02-2014 | Award Amount: 5.73M | Year: 2015

The overall objective of the REProMag project is to develop and validate an innovative, resource-efficient manufacturing route (SDS process) for Rare Earth magnets that allows for the economically efficient production of net-shape magnetic parts with complex structures and geometries, while being 100% waste-free along the whole manufacturing chain. The new Shaping, Debinding and Sintering (SDS) process for Rare Earth magnets is an innovative automated manufacturing route to realise complex 3D- and multilayered parts; resulting in a significant increase in the material efficiency of at least 30% during manufacturing; while at the same time allowing additional geometrical features such as threads, cooling channels, small laminations/segments (e.g. to increase the efficiency of electrical motors) and structural optimisations such as lightweight-structures or the joint-free realisation. As part of the project, the possibility to produce hybrid parts such as an improved moving-coil transducer for headphones, loudspeakers and microphones will be evaluated. The SDS process allows a new level of sustainability in production, as the energy efficiency along the whole manufacturing chain can be increased by more than 30% when compared to conventional production routes. Moreover, the used raw material is 100% recycled and can be again recycled in the same way at the end of the lifetime of the products. In short, the innovative REProMag SDS process has the potential to manufacture complex structures of high quality and productivity with minimum use of material and energy, resulting in significant economic advantages compared to conventional manufacturing. The REProMag project is a highly innovative combination of applied research, technology development and integration, resulting in small-scale prototypes and a closely connected demonstration activity clearly showing the technical feasibility of the REProMag SDS processing route in a near to operational environment.


Patent
Sennheiser | Date: 2016-01-21

The invention concerns a communication device for placement at the ear of a user. A battery and transmission part is shaped to rest behind and above the ear lobe of a user and a speaker and microphone part is arranged to extend downwards in front of the ear canal. The two parts are interlinked to pivot, at least in the sagittal plane, with respect to each other and the battery and transmission part accommodates a battery as well as signal processing and transmission electronics, and the speaker and microphone part accommodates a speaker element and a microphone boom arm and further, the two parts have mating surfaces such that a pivotal motion between the two, when the device is not at the ear, will bring a surface of the first part and a surface of the second part together. Further the link between the two parts comprises a hollow ball joint connection allowing leads to pass through the ball joint. Also a magnet is inserted in the one part and a sensor for sensing the magnetic field from the magnet is comprised in the other part, such that the movement between the two parts may be registered and used to control the function of the device or for giving audible indication signals to the user.


Patent
Sennheiser | Date: 2016-01-21

A digital wireless audio transmission system having a wireless receiving unit for wirelessly receiving a high-frequency signal. An HF analysis unit analyzes the received high-frequency data, detects errors in the transmission within a time window, and outputs the received data and first items of information in respect of the detected errors. A decoding unit converts/decodes the received high-frequency data into audio data. An error detection unit checks errors in the conversion of the decoding unit within a previously established time window and outputs second items of information in respect of errors during decoding of the received high-frequency data. An error rate is determined based on the first and second items of information. If the error rate exceeds a first threshold value then no audio signal is outputted. Only if the error rate falls below a second value, lower than the first value, is an audio output is then again effected.


There is provided a method which makes it possible for a device connected to an electronic video camera to be put into a sleep mode by way of switching off the phantom voltage at the interface for sound and to put it back into the working mode again when the phantom voltage from same reappears. In that case that device can put further devices into a sleep mode by way of a wireless connection and also switch them back into the normal working mode again.


Patent
Sennheiser | Date: 2016-06-29

A locking device (2) for securing a piece of electronic equipment (4) to a structure (6) is disclosed. The locking device (2) comprises one or more mounting structures (8, 34, 48, 72) configured to fix the locking device (2) to the structure (6). The locking device (2) comprises one or more cable guides (24, 26) configured to receive a cable (20) of the piece of electronic equipment (4) and hereby restrict the range of motion of the piece of electronic equipment (4). The locking device (29 includes one or more features to prevent the locking device (2) from being unlocked. (Fig. 1C)


A digital audio transmission system, in particular a wireless microphone or wireless pocket transmitter system. The audio transmission system has at least one wireless transmitter and at least one wireless receiver. The wireless transmitter has an analog input, a digitally adjustable input potentiometer for adjusting the input gain, an analog/digital converter for converting the analog signals into digital signals, a digital signal processing unit for performing digital signal processing, and a digital or a digitally adjustable output potentiometer for adjusting the output gain. The digital signal processing unit is adapted to adjust the gain of the digital input potentiometer and/or the digital output potentiometer in such a way that the dynamic range of the analog/digital converter is optimally utilized.


A method of determining acoustical characteristics of a room or venue having n sound ratios or sound sources is provided. A microphone having four omni-directional microphones are placed at ends of a tetrahedro-mounting unit, wherein the ends of the tetrahedro-mounting unit are equidistant to a middle point of the mounting unit. Impulse responses are detected for each of the n sound generators or sound sources by the four microphones of the microphone unit. The detected impulse responses are analyzed in view of direct sound components by determining a direction of the direct sound component, a delay and a frequency response. The detected impulse responses are analyzed in view of early reflection components by determining a direction of early reflections, a delay and a frequency response of each of the n early reflections. The detected impulse responses are analyzed in view of late reverberation components by determining a delay and frequency responses. Filtered parameters for a direct sound transmission function filter are calculated based on the determined direction, delay and frequency response of the direct sound components. Filter parameters for m early reflection transmission function filters are calculated based on the m determined directions, delays and frequency responses of the m early reflection components. Filter parameters for a late reverberation transmission function filter are calculated based on the delay and frequency response of the late reverberation components.

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