Patents Assigned to Grundig AG
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Patent number: 6275804Abstract: The digital storage of speech signals in a semiconducting memory is known in the art. Large quantities of storage space are required for storing speech signals and therefore, for long recordings for example dictations, a very large semiconductor memory is needed. This is advantageously implemented using a so-called flash memory. However, the contents of such a memory can only be erased in large sections at a time so that minor changes such as partial erasures and insertions are not possible. The total available memory is subdivided into clusters and a table of contents is created in which the stored files and the state occupation of each cluster is stored, at is known in the art concerning the DOS file manager. Moreover, information which indicates which cluster is the next cluster of a file is stored for each cluster in a file allocation table.Type: GrantFiled: July 21, 1998Date of Patent: August 14, 2001Assignee: Grundig AGInventors: Holger Carl, Dirk Kirchmann
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Patent number: 6246979Abstract: This invention relates to a method for voice signal coding and/or decoding. According to this method, a voice signal analysis for determining the prediction parameters is carried out from a digital voice signal. An excitation signal component (ENtp) is determined from an adaptive code book (3) built from a delayed integral excitation signal (Ev). Further, a multipulse component of the excitation signal is determined (4) by minimising the effect of the weighting filtered difference between the signal resulting from the respective excitation signal and the input voice signal.Type: GrantFiled: March 23, 2000Date of Patent: June 12, 2001Assignee: Grundig AGInventor: Holger Carl
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Patent number: 6178175Abstract: The establishment of an interactive broadcasting network requires not only a transmission channel from transmitter to receiver but also a transmission channel from receiver to transmitter. A novel method of creating a data feedback channel from receiver to transmitter is implemented in a common frequency network and involves the use of a transmission procedure in conformity with the DAB standard. Each receiver or user is assigned an identifier which is transmitted in the data feedback channel at specially reserved frequencies to request transmission capacity. A computer then allocates transmission capacity to the receiver. The signals received in the forward channel are evaluated using the synchronization symbols they contain in order to synchronize the transmitter component in the receiver. The novel process can be used in all common frequency networks which use data transmission in conformity with the DAB standard and ensures a particularly economical synchronization in the receiver.Type: GrantFiled: April 22, 1998Date of Patent: January 23, 2001Assignee: Grundig AGInventor: Markus Zumkeller
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Patent number: 6088349Abstract: The common-wave broadcasting of radio programs is known in the art. Common-wave operation of radio transmitters allows the available transmission band width to be particularly well utilized, for example for national scale common-wave broadcasts. A new process now allows a stereo transmission channel to be divided into two mono transmission channels during radio broadcasts and to broadcast certain programs only through particular transmitters. Information concerning the division of the stereo transmission channel into two mono transmission channels is further broadcast over the entire common-wave transmission network. This information causes receivers tuned to this transmission channel to automatically switch to mono evaluation of the reception signal. On a regional level, information may also be broadcast concerning which of both mono transmission channels may be received. Alternatively, the receiver or user himself may select the mono transmission channel he wishes to receive.Type: GrantFiled: June 24, 1997Date of Patent: July 11, 2000Assignee: Grundig AGInventor: Markus Zumkeller
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Patent number: 5877710Abstract: Pulse generators are known for setting an operational parameter, for example volume. They allow a more precise adjustment thanks to a larger angle of rotation than that of potentiometers. Because of the increased angle of rotation, however, fast adjustments are possible only within limits. In general, several turns are required to set the volume to zero, for example. In order to avoid this inconvenience, the speed of rotation and the direction of rotation of the pulse generator are evaluated. If the pulse generator is quickly actuated, this is recognized by a control unit which sets the parameters to a stored value. Evaluating the direction of rotation allows various different stored values to be distinguished from each other.Type: GrantFiled: January 24, 1997Date of Patent: March 2, 1999Assignee: Grundig AGInventor: Gottfried Kagerbauer
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Patent number: 5840363Abstract: The invention pertains to a process for throughplating of printed circuit boards using conductive plastics for direct plating, wherein a polymer film with intrinsic electric conductivity is adhesively deposited on non-conductive areas of the printed circuit boards, whereupon a metal film is applied. Selective production of the polymer film has previously been seen as requiring an oxidative pre-treatment of the printed circuit board, though this can negatively affect the further course of the process. With the present invention the potential negative effects are avoided by forgoing the oxidation pre-treatment.Type: GrantFiled: March 28, 1997Date of Patent: November 24, 1998Assignee: Grundig AGInventors: Gerhard Rosch, Walter Stuckmann
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Patent number: 5835588Abstract: In the present state of the art, digital dictation machines with interchangeable semiconductor stores in the form of chip cards are known. The present invention describes a dictation system consisting of a mobile and stationary dictation machines in which the unauthorized listening-into dictated items is prevented by a code lock. The special nature of the coding of the machine and the code exchange between the chip card and the dictation machine is disclosed in particular. The code for a given machine configuration is established from a central reproduction station.Type: GrantFiled: August 15, 1995Date of Patent: November 10, 1998Assignee: Grundig AGInventor: Horst Zell
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Patent number: 5715591Abstract: It is well known that induction regulators are used in transmitting signals in head drum structures in video devices or equipment for digital recording and playback of signals. Since each head on the head wheel requires its own induction regulator, or transformer for short, there can be a relatively large number of transformers. This plus the fact that head drum units are becoming increasing smaller, and transmission frequencies increasingly higher, leads to very high demands for precision on the part of the transformer. This applies both to the ferrite rings and to the coils of the transformer. A device is proposed with which coils can be produced with high precision in the inner groove of the ferrite ring.Type: GrantFiled: March 4, 1996Date of Patent: February 10, 1998Assignee: Grundig AGInventors: Friedrich Albrecht, Otto Weiss
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Patent number: 5355307Abstract: A control apparatus, in particular for a machine tool, has an input keyboard, for the input of items of data and/or control commands, has further a visual display unit with a screen, and has an operation unit. Items of control information can be displayed on the screen in the form of a menu and a sub-menu. A key image is placed before each item of control information, which image comprises several fields of which one field is made optically distinguishable from the other fields. The keyboard has selected keys which are arranged similarly to the fields of the key image. The key images serve for menu guidance, the operator, when selecting a command term, having to press that key which corresponds to the optically distinguishable field of the associated key image.Type: GrantFiled: March 1, 1993Date of Patent: October 11, 1994Assignee: Grundig AGInventor: Joachim Scharnhorst
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Patent number: 5315525Abstract: In a method for simulating the machining of workpieces on lathes utilizing a data processor, the unmachined contour of the workpiece to be machined, the finished contour of the workpiece and the contour of the tool are shown two-dimensionally on the screen. The path of movement of a defined tool reference point according to a machining program is shown. The part of the cutting edge of the tool intended to do the cutting is defined. The area traversed by this part of the cutting edge during each machining feed is outlined and made recognisable by a pattern in such a way that lines and patterns that already exist remain visible.Type: GrantFiled: October 29, 1993Date of Patent: May 24, 1994Assignee: Grundig AGInventors: Reiner Bluthgen, Klaus Deichmann
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Patent number: D260255Type: GrantFiled: December 13, 1978Date of Patent: August 18, 1981Assignee: Grundig AGInventor: Gerhard Dietrich
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Patent number: D400530Type: GrantFiled: July 19, 1996Date of Patent: November 3, 1998Assignee: Grundig AGInventor: Jeroen C. Botden