WO2005099139A1

WO2005099139A1 - Radio receiver

Info

Publication number: WO2005099139A1
Application number: PCT/EP2005/050568
Authority: WO
Inventors: Gerold Bertram; Maik Scholz
Original assignee: Robert Bosch Gmbh
Priority date: 2004-04-07
Filing date: 2005-02-09
Publication date: 2005-10-20
Also published as: DE102004016980A1

Abstract

The invention relates to a radio receiver, especially for receiving and reproducing digitally transmitted sound radio signals. Said radio receiver (2) comprises a non-volatile memory medium (14) for storing and reading out data, and a recording control system (9) that can recognise the beginning of a transmitted piece of music. Said radio receiver is embodied in such a way as to store the data received over a pre-determined period of time (t) once the beginning (11,12) of the piece of music has been recognised, in an intermediate memory (10). Furthermore, when a recording command (13) is inputted during the pre-determined period of time (t), the intermediately stored data and the data currently being received are stored on the non-volatile memory medium (14).

Description

Rundfunkempfäneer

The present invention relates to a radio receiver, in particular for the reception and reproduction of digitally transmitted radio signals, the radio receiver having a non-volatile storage medium for storing and reading out data, and having a recording control which can recognize the start of a transmitted piece of music and which is designed to that the data which are received during a predetermined period of time after the beginning of the piece of music has been recognized are stored in a temporary memory, and that if an acceptance command is entered within the predetermined period of time, the temporarily stored data and the currently received data are stored on the non-volatile storage medium.

State of the art

From DE 19846 865 AI eiα receiver for digital radio (DAB) is known, in which the characteristics of each ensemble received are entered in a table stored in a memory. An operation calls up an entry from the table and the receiver is set to receive the associated ensemble.

Core and advantages of the invention

The essence of the present invention is to provide a radio receiver, in particular for the reception and reproduction of digitally transmitted radio signals, which is capable of receiving pieces of music on a non-volatile storage medium save, even if the user input for recording the piece of music is only entered after the beginning of the piece of music. According to the invention, this is solved by the features of the independent claim. Advantageous further developments and refinements result from the subclaims.

Advantageously, the storage of the currently received data on the non-volatile storage medium continues until the recording control recognizes the end of the piece of music or an recording end command is entered by the user. The detection of the end of the piece of music is achieved with the same means as the detection of the beginning of the piece of music, but the

Detection switching works in reverse. This means that the start occurs when the information that is also transmitted is switched from speech to music, and the end of the piece of music is recognized when the music is switched to speech.

It is also advantageous that the digitally transmitted radio signals "Digital Audio Broadcast" (DAB signals) and / or "Digital Radio Mondiale" (DRM signals), "Digital Video Broadcast Terrestrial" (DVB-T) signals, " In-Band On-Channel "(TBOC) signals," Satellite Digital Audio Radio Service "(SDARS) signals," XM Satellite Radio "(XM radio) signals, frequency-modulated radio signals (FM) and / or Sirius-

Broadcast signals are.

It is also advantageous that the beginning of a piece of music is recognized when the "Music / Speech" flag present in the "Program Associated Data" channel (PAD) switches from "Speech" labeling to "Music" labeling.

The beginning of a piece of music is advantageously recognized when a "speech / music" label switches from "speech" to "music" in "Fast Information Channe ¹ (FIC)".

It is also advantageous that the end of a piece of music is recognized when the "Music / Speech" flag present in the "Program Associated Data" channel (PAD) switches from "Music" label to "Speech" label. It is also advantageous that the end of a piece of music is recognized when a "language / Musil <:" marking switches from "music" to "language" in the "Fast Infoimafion-Channei" (FIC).

Advantageously, the temporary storage of data is carried out for a predetermined time after the start of the piece of music has been recognized. This predetermined time can, for example, be predetermined to be about 30 seconds. Furthermore, it is also conceivable to set the predetermined time to be about 15 seconds, about 45 seconds or about 60 seconds.

It is also advantageous that the non-volatile storage medium in the radio receiver can be replaced. For this purpose, it can be provided that the non-volatile storage medium can be inserted into a slot provided for the radio receiver and this storage medium, if it is inserted in this slot, can be written and read and, if necessary, can be removed from the slot provided for the radio receiver and, if necessary can be replaced by a similar storage medium.

It is also advantageous that the non-volatile storage medium is a memory card. At least one type of storage media comes as memory cards.

Card (MMC), compact flash cards (CF), secure digital cards (SD), smart media cards (SM) or XD cards or any combination thereof.

Furthermore, it is advantageous that a user input specifies that the piece of music that begins next is recorded. This function does not record the piece of music currently playing, the beginning of which has been buffered, but the piece of music whose beginning of the piece of music is recognized and recognized as the next transmission.

It is also advantageous that the Runcuunk receiver for installation in

Motor vehicles is provided. Radio receivers for installation in motor vehicles are limited in particular by their structural dimensions and their shape, since they have to be installed in a standardized car radio slot and can only accommodate a limited operating and display surface and only a limited installation space for the components of the device. Further features, possible applications and advantages of the invention result from the following description of exemplary embodiments of the invention, which are shown in the figures of the drawing. All of the features described or shown form the subject matter of the text individually or in any combination

Invention, regardless of their summary in the claims or their relationship and regardless of their wording or representation in the description or in the drawings.

drawing

Exemplary embodiments of the invention are explained below with the aid of drawings. Show it

FIG. 1 shows a schematically illustrated block diagram of an embodiment of the radio receiver according to the invention and

Figure 2 is a flowchart of the method according to the invention.

Description of exemplary embodiments

In Figure 1 is a schematic block diagram of an inventive

Broadcast receiver shown. The Runci radio receiver 1, which is connected to an antenna 2, can be seen. The antenna 2 can be, for example, a special DAB antenna or a DAB-AM-FTVI combination antenna. The components of the radio receiver 1 shown are only partially shown here, of course the radio receiver 1 can also be equipped with other components, for example for FM reception or AM-Er-np ang or for reproducing compact cassettes or compact discs. Compressed and coded DAB signals are received by means of the DAB-capable antenna 2 and fed to a DAB tuner 3. This DAB tuner 3 demodulates the received DAB signals and decodes them. The DAB tuner 3 provides one at its outputs

DAB Main Service Channel (MSC) decoder provides the demodulated data of the Main Service Channel and a DAB Fast Information Channel (FIC) decoder provides the demodulated data of the Fast Information Channel. The Main Service Channel Decoder decodes the transmitted program data and the additional data assigned to the program in the Associated Data (PAD) program and turns it on a coded audio signal 6 is available at its output. The Fast Information Channel decoder 5 decodes the data which the DAB tuner 3 has demodulated for the Fast Information Channel (FIC). In this case, it can be provided that information is transmitted in the Fast Information Channel (FIC) in one of the transmitted Fast Information Groups (FIG), which indicates whether the currently transmitted audio data represents voice content or music content. The DAB Fast Information Channel decoder 5 provides an output signal 12 from this information, from which it can be seen whether the audio data currently being transmitted and received contain music or speech reproduction. The coded audio data 6 output by the DAB main service channel decoder 4 are fed to an audio decoder 7, which decodes this data and outputs it via an output stage (not shown here) to one or more loudspeakers 8 which are arranged outside the device. Furthermore, the coded audio data 6 are fed to a recording controller 9, which, however, is not processed further there if the recording is not cloned in. As an alternative to winning a "speech / music" label from the Fast Information Channel (FIC), it is also possible as an alternative or in combination, another "Sprach &JMusik" label from the Associated Data (PAD) program of the Main Service Channel ( MSC) to win. The "Music / Speech" flag present in the Associated Data program can be extracted by the audio decoder 7 and. the recording control 9 are supplied. The recording control 9 has, inter alia, one

Buffer 10, which is dimensioned such that the coded audio data 6, which i.a. can be supplied to the recording controller 9 for a predetermined time period t, which can be, for example, approximately 30 seconds. If the recording controller 9 is signaled by means of the start / stop detection as well as the PAD 11 or by means of the start / stop detection from the FIC 12, that at the moment

Music / Speech flag switches from "Speech" to "Music", the coded audio data 6, which u.a. the recording controller 9 are fed, written into the buffer 10. A control element is activated by the user within the predetermined time period t, during which the coded audio data 6 are written into the buffer memory 10 and which represent the beginning of the piece of music

13 actuated, which represents a recording command, the coded audio data 6 stored in the buffer memory 10 are read out, fed to a non-volatile storage medium 14 and stored on this non-volatile storage medium 14. In addition to the data temporarily stored in the buffer memory 10, the currently received, encoded audio data 6 are received by the recording control 9 passed on to the non-volatile storage medium 14, so that the entire piece of music can be stored on the non-volatile storage medium 14 from the start of its transmission, even if the pick-up command 13 was entered by the user at a later time than the start of the piece of music, but within the predetermined time period t. The storage of the audio data on the storage medium 14 is terminated when the end of a piece of music is recognized by means of the start / stop detection from the PAD 11 or the start / stop detection from the FIC 12 by the "Music / Speech" flag of " Music "switches to" Speech ", or if the user enters an end command for the recording by means of an operating element 13. The non-volatile storage medium 14 can be designed, for example, as a multi-media card or as a secure digital card, but it is also possible for others To use memory cards, such as compact flash cards, smart media cards or XD cards. Furthermore, it can also be provided that the non-volatile storage medium is designed as a flash ROM with a USB interface, as is used, for example, in memory sticks.

A flow chart of the invention is described in FIG. After the start, the beginning of the piece of music is recognized in block 16 from a “Speech Music” label, for example from the PAD or the FIC, in which the music speech label switches from “Speech” to “Music”. If a start of a piece of music has been recognized, then in the subsequent block 17 the audio data are temporarily stored in the buffer memory 10 and carried out for a predetermined time period t. During this predetermined time period l, it is checked in block 18 whether within this time period t, which can be, for example, approximately 30 seconds, the user inputs an admission command using an operating device 13. If the input of this recording command does not take place within the predetermined time period t, the diagram branches to "No" and the audio data is not stored on the. non-volatile storage medium performed. Optionally, the data stored in the intermediate memory 10 can be deleted or can be deleted. remain there and be overwritten at the beginning of the next piece of music.

For example, it can also be provided that when a piece of music is recognized, which can be recognized by switching the "Music / Speech" indicator from "Music" to "Speech", the buffer memory 10 is deleted. In the next step 19, the next piece of music is awaited, after which the diagram follows. End branches and continues in a repeated pass in block 16. Was in Block 18 recognizes that a user has entered an admission command by means of an operating element 13 within the predetermined time period t, block 18 branches to "yes" and in block 20 the temporarily stored data and the currently received data of the piece of music are sent to the non-volatile storage medium 14 forwarded and saved there. If it is recognized in the following block 21 that the transmission of the current piece of music has ended, which can be recognized, for example, by means of the "Speech / Music" label, in that it switches from "Music" to "Speech", the storage of the audio data 6 ended on the non-volatile storage medium 14 and the method according to the invention ended, whereupon it jumps to "Start" and waits for a new piece of music to begin. When the user inputs the user by means of an operating element 13 during music recording, the data can be stored on the non-volatile Storage medium can be canceled.

Claims

Expectations

1. radio receiver, in particular for the reception and reproduction of digitally transmitted radio signals, characterized in that a non-volatile storage medium (14) for storing and reading out data is provided in the Runclfurik receiver (1), that a recording controller (9) is present, which recognizes the beginning (11, 12) of a transmitted piece of music and that the data received during a predetermined time period (t) after the beginning of the piece of music is recognized (9, 10) are stored in a buffer (10) and when a recording command is entered ( 13) the temporarily stored data and the currently received data are stored on the non-volatile storage medium (14) within the predetermined time period.

2. Radio receiver according to claim 1, characterized in that the storage of the currently received data on the non-volatile storage medium (14) is continued until the recording control (9) recognizes the end of the piece of music (11, 12) or a recording end command (13 ) is entered

3. Radio receiver according to claim 1 or 2, characterized in that the digitally transmitted radio signals DAB signals and / or DRM signals and / or DVB-T signals and / or IBOC signals and / or SDARS signals and / or XM Radio signals and or FM radio signals and / or Smus radio signals are

4. Radio receiver according to one of the preceding claims, characterized in that the beginning of a piece of music (11) is detected when the "Music / Speech" flag on "Speech" in the "Program Associated Data" channel (PAD) is present. Label switches to "Music" label.

5. Radio receiver according to one of the preceding claims, characterized in that the beginning of a piece of music (12) is detected when a "speech / music" label switches from speech to music in the "Fast Information Channel" (FIC).

6. Radio receiver according to one of the preceding claims, characterized in that the intermediate storage (10) of data after detection of the beginning of the piece of music (11,12) can be carried out for about 30 seconds

7. Radio receiver according to one of the preceding claims, characterized in that the non-volatile storage medium (14) in the radio receiver (1) is replaceable.

8. Radio receiver according to one of the preceding claims, characterized in that the non-volatile storage medium (14) is a memory card, in particular an MMC / SD card.

9. Radio receiver according to one of the preceding claims, characterized in that it can be predetermined by a user input (13) that the

Piece of music that starts next is recorded

10. Radio receiver according to one of the preceding claims, characterized in that the radio receiver (1) is provided for installation in motor vehicles