Abstract:
The invention relates to a method for changing the flow of a program stored in a read-only memory. To this end, the program has a plurality of program routines and to any program routine a sub-program is assigned which is stored in a first read-write memory. Storage locations of a second read-write memory are assigned to each program routine. A program routine calls the sub-program irrespective of the content of the assigned storage locations, provided a sub-program is allocated to said program routine.
Abstract:
A system and apparatus for establishing whether a received signal frame is an audio signal frame is disclosed. In one embodiment, the system includes a predetermined position in an audio signal frame containing a piece of secondary information for an audio characteristic of the audio data, with a selection device for selecting a succession of bits which is arranged at the predetermined position in the received signal frame. A decision-making device flags the received signal frame as an audio signal frame if the succession of bits represents the piece of secondary information.
Abstract:
A system and apparatus for establishing whether a received signal frame is an audio signal frame is disclosed. In one embodiment, the system includes a predetermined position in an audio signal frame containing a piece of secondary information for an audio characteristic of the audio data, with a selection device for selecting a succession of bits which is arranged at the predetermined position in the received signal frame. A decision-making device flags the received signal frame as an audio signal frame if the succession of bits represents the piece of secondary information.
Abstract:
The invention relates to a method and to a device for identifying markers in data blocks. The method is characterized in that a number of data blocks ( 201 a 201 n) are received by a receiver ( 202 ) and one specific data block from the number of data blocks ( 201 a 201 n) is analyzed in order to determine whether the specific data block contains a marker ( 203 ) or not. Once a data block that contains a marker ( 203 ) is identified, a full-rate signaling block ( 206 ) that is transmitted at full rate and a half-rate signaling block ( 207 ) that is transmitted at half rate are searched for markers. A predetermined reference pattern is provided for correlation that is subsequently divided into sub-ranges that in turn are correlated with a predetermined reference pattern to identify a signaling frame in the full-rate signaling blocks ( 206 ) and/or the half-rate signaling blocks ( 207 ).
Abstract:
Both computer procedures are repeated. Results of the second procedure form inputs for the first, using the following stages. The data flow is divided into processing sections (I1, I2, I3, I4, r1, r2, r4, r4; a1, a2, ap). The first computer procedure is carried out for a specific processing stage (r1; a1) and (b2) overlapping in time with execution of the first computer procedure, execution of the second computer procedure for another processing stage (I2; a2). An Independent claim is included for corresponding decoding equipment.
Abstract:
A method for changing the execution of a program stored in a read only memory is described. For this purpose, the program has a multiplicity of program routines, and each program routine can be allocated a subprogram that is stored in a first read/write memory. In addition, each program routine has associated memory locations in a second read/write memory. If a program routine has an associated subprogram, the program routine then calls the subprogram on the basis of the content of the associated memory locations.
Abstract:
A system and apparatus for establishing whether a received signal frame is an audio signal frame is disclosed. In one embodiment, the system includes a predetermined position in an audio signal frame containing a piece of secondary information for an audio characteristic of the audio data, with a selection device for selecting a succession of bits which is arranged at the predetermined position in the received signal frame. A decision-making device flags the received signal frame as an audio signal frame if the succession of bits represents the piece of secondary information.
Abstract:
A circuit for recording and playing back voice in digital mobile radio devices and a method for appropriately recording and playing back the voice. The circuit includes a transmit-end voice encoder, a receive-end voice decoder, a memory for the recorded signals, a further voice encoder whose output is connected to the memory, and a further voice decoder whose input is connected to the memory.
Abstract:
The invention relates to a method and to a device for identifying markers in data blocks. The method is characterized in that a number of data blocks ( 201 a 201 n) are received by a receiver ( 202 ) and one specific data block from the number of data blocks ( 201 a 201 n) is analyzed in order to determine whether the specific data block contains a marker ( 203 ) or not. Once a data block that contains a marker ( 203 ) is identified, a full-rate signaling block ( 206 ) that is transmitted at full rate and a half-rate signaling block ( 207 ) that is transmitted at half rate are searched for markers. A predetermined reference pattern is provided for correlation that is subsequently divided into sub-ranges that in turn are correlated with a predetermined reference pattern to identify a signaling frame in the full-rate signaling blocks ( 206 ) and/or the half-rate signaling blocks ( 207 ).