TWI424702B - Digital frequency modulation radio device - Google Patents

Description

Digital radio frequency modulation device

The invention discloses a digital radio frequency modulation device, in particular to a digital radio frequency modulation device without a screen display.

As the Chinese people jog and fitness prevail, during jogging and fitness, they often use music to solve loneliness or adjust their own pace. At this time, small portable electronic products with music playback function have become popular. In order to allow users to have more choices for listening, these small portable electronic products often have radio frequency modulation devices to listen to radio stations in addition to playing music.

In some conventional radio frequency modulation devices, although the display bar and the rotary button are provided for the frequency modulation action, the frequency modulation device of the radio frequency modulation device is not easy to control and has no automatic search channel function, and the frequency modulation efficiency is difficult to control.

The traditional digital radio frequency modulation device has the functions of unit frequency modulation, automatic search, and convenient radio frequency adjustment for storing common radio channels, but it requires a screen display to display the channel position after frequency modulation.

With the advancement of communication technology and manufacturing technology, the traditional digital radio frequency modulation device has developed toward a small size and refined shape, and the screen display set to display the channel position may hinder the development of the shape, and also increase the digital radio. manufacturing cost.

In view of the above, it is an object of the present invention to provide a digital radio frequency modulation apparatus to improve the above-described prior art problem of requiring a screen display to display a frequency modulation position.

In accordance with the above purposes, the present invention provides a digital radio frequency modulation device that replaces the prior art with a voice output to inform the user of the location of the channel after the frequency modulation. The digital radio frequency modulation device of the present invention comprises at least: a digital signal input unit for inputting a first digital command and converting the first digital command into a first digital command signal; and a digital frequency modulation unit electrically connecting the digital The signal input unit performs a first frequency modulation operation according to the first digital command signal to obtain a channel position and generates a first digital result signal; a code decoder electrically connecting the digital frequency modulation unit to receive the first digital position The result signal is converted into a first voice result signal; and a voice output unit is electrically connected to the codec, and the voice output unit receives the first voice result signal and outputs the signal.

In addition, the user can connect to the personal computer through the digital radio frequency modulation device to edit the stored channel position data of the digital frequency modulation unit.

In summary, in the digital radio frequency modulation device of the present invention, the above-mentioned FM command and digital radio frequency modulation device are designed to realize a digital radio frequency modulation device which can be easily adjusted without a screen display.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

10‧‧‧Digital radio frequency modulation device

20‧‧‧Digital signal input unit

201, 2011, 2013‧‧‧ button

202‧‧‧Induction pulley

30‧‧‧Digital FM unit

301‧‧‧Processing unit

302‧‧‧FM module

303‧‧‧ storage unit

40‧‧‧ Codec

50‧‧‧Voice input unit

60‧‧‧Voice output unit

C1~C7‧‧‧ signal

R1, R2, R5, R6‧‧‧ result signals

R7, R8, R11, R12‧‧‧ result signals

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram of a system of a first embodiment of the present invention.

Figure 2 is a schematic view showing one embodiment of the small-range adjustment of the present invention.

FIG. 3 is a schematic diagram of an embodiment of the automatic search frequency modulation of the present invention.

Figure 4 is a schematic view showing one embodiment of the wide-range frequency modulation of the present invention.

Figure 5 is a block diagram of a system of a second embodiment of the present invention.

Hereinafter, the digital radio frequency modulation apparatus according to the preferred embodiment of the present invention will be described with reference to the related drawings. For the sake of understanding, the same components in the following embodiments are denoted by the same reference numerals.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a system block diagram of a first embodiment of a digital radio frequency modulation apparatus of the present invention. As shown in FIG. 1, the digital radio frequency modulation apparatus 10 of the present invention includes a digital signal input unit 20, a digital frequency modulation unit 30, a codec (CODEC) 40, and a voice output unit 60. The digital signal input unit 20 includes a button 201 and an inductive pulley 202, and the digital frequency modulation unit 30 includes a processing unit 301, an FM (Frequency Modulation) module 302, and a storage unit 303.

In the digital radio frequency modulation device 10 of the present invention, the processing unit 301 is electrically connected to the digital signal input unit 20. The FM module 302 and the storage unit 303 in the digital frequency modulation unit 30 are electrically connected to the processing unit 301, respectively. The processing unit 301 is for coordinating the transmission of the data of the mutual operation between the units in the digital radio frequency modulation device 10. In the first embodiment, in actual use, the user inputs the FM command by mechanical input by the button 201 or the inductive pulley 202 of the digital signal input unit 20. After the FM command is input, the digital signal input unit 20 first converts the FM command into a digital command signal C1, and transmits the digital command signal C1 to the processing unit 301.

After the processing unit 301 receives the digital command signal C1 transmitted from the digital signal input unit 20, the processing unit 301 converts the digital command signal C1 to the corresponding digital tone. The frequency command signal C2 is transmitted to the FM module 302 by the digital frequency modulation command signal C2.

Therefore, the FM module 302 can perform a frequency modulation operation to obtain a channel position according to the digital frequency modulation command signal C2 received from the processing unit 301, and generate a digital result signal R1 and return it to the processing unit 301 after performing the action.

After receiving the digital result signal R1, the processing unit 301 transmits the digital result signal R1 to the codec 40 electrically connected to the processing unit 301. After receiving the digital result signal R1, the codec 40 can perform bidirectional conversion of the speech analog signal/digital signal according to the inner code, thereby converting the digital result signal R1 into the analog result signal R5, and analogizing the result signal. R5 is transmitted to the voice output unit 60.

Since the voice output unit 60 is electrically connected to the codec 40, the voice output unit 60 can output after receiving the analog result signal R5, thereby informing the user that the frequency modulation command has been executed and the channel position after the frequency modulation action is performed. The voice output unit 60 is, for example, a speaker that can receive and receive the analog result signal R5.

In addition, the digital radio frequency modulation device 10 of the present invention can store the current channel position after the frequency modulation action according to the actual needs of the user. In actual use, the user inputs the storage command by means of the mechanical input of the button 201 or the inductive pulley 202 of the digital signal input unit 20. After the storage command is input, the digital signal input unit 20 first converts the storage instructions into another digital signal, and transmits the other digital signal to the processing unit 301. After the processing unit 301 receives the other digital signal transmitted by the digital signal input unit 20, the processing unit 301 converts the digital signal into a corresponding digital command signal C3 in the database, and transmits the digital command signal C3 to the storage unit 303. . Thereby, the storage unit 303 can store the current channel location data according to the digital command signal C3, and generate the number of "stored channels" after performing the storage operation. The bit result signal R2 is passed back to the processing unit 301. After receiving the digital result signal R2, the processing unit 301 transmits the digital result signal R2 to the codec 40 electrically connected to the processing unit 301. After receiving the digital result signal R2, the codec 40 can perform bidirectional conversion of the voice analog signal/digital signal according to the inner code, thereby converting the digital result signal R2 into the analog result signal R6, and analogizing the result signal. R6 is sent to the voice output unit 60 for output.

The FM command input by the user through the button 201 or the sensing pulley 202 includes, for example, small-range frequency modulation, automatic search frequency modulation, wide-range frequency modulation, storage channel position, or frequency modulation to a stored channel position, but not limit.

FIG. 2 is a schematic diagram of an embodiment of a small-range frequency modulation according to the present invention. As shown in FIG. 2, when the user wants to perform small-range frequency modulation, the first button 2011 on the digital radio frequency modulation device 10 can be used to perform a small range. FM. For example, the digital radio frequency modulation device 10 currently has a channel position of FM89.3. When the user presses the first button 2011, the digital radio frequency modulation device 10 performs frequency modulation to increment a minimum frequency modulation unit (+0.01), and performs frequency modulation. After completion, FM89.4 is outputted by voice through a headset (not shown) to inform the user that the FM command has been executed and the channel position after performing the FM action is FM89.4.

In addition, the digital radio frequency modulation device 10 of the present invention can also perform small-range frequency modulation in the decreasing direction, but the operation mode is the same as the small-scale frequency modulation operation mode of the incremental direction mentioned above, and therefore will not be described again.

FIG. 3 is a schematic diagram of an embodiment of the automatic search frequency modulation according to the present invention. As shown in FIG. 3, when the user wants to perform automatic search frequency modulation, the second button 2013 on the digital radio frequency modulation device 10 can be used for automatic search. FM. For example, if the digital radio is tuned The frequency device 10 is currently located at FM89.1, and when the user presses the second button 2013, the digital radio frequency modulation device 10 will perform frequency modulation to increment the plurality of minimum frequency modulation units to the nearest channel position FM89.1. The radio channel position is FM89.5, and after the FM is completed, FM89.5 is outputted by the earphone (not shown) to inform the user that the FM command has been executed and the channel position after the FM operation is performed is FM89.5.

In addition, the digital radio frequency modulation apparatus 10 of the present invention can also perform automatic search frequency modulation in the decreasing direction, but the operation mode is the same as the automatic search frequency modulation operation mode of the above-mentioned incremental direction, and therefore will not be described again.

FIG. 4 is a schematic diagram of an embodiment of a wide-range frequency modulation according to the present invention. As shown in FIG. 4, when the user wants to perform large-range frequency modulation, the wide-range frequency modulation can be performed by the induction pulley 202 on the digital radio frequency modulation device 10. . For example, if the position of the digital radio frequency modulation device 10 is currently FM89.1, when the user presses the induction pulley 202 and slides clockwise, the digital radio frequency modulation device 10 will perform incremental multiple automatic search frequency modulation, and use When the sliding of the induction pulley 202 is stopped, the digital radio frequency modulation device 10 stops the operation of incrementing the plurality of automatic search frequency modulations, and is frequency-tuned to the radio channel position FM107.7 where the channel position of the user is the same when the user stops sliding the induction pulley 202, and After the completion of the frequency modulation, FM107.7 is outputted by the earphone (not shown) to inform the user that the frequency modulation command has been executed and the channel position after performing the frequency modulation operation is FM107.7.

In addition, the digital radio frequency modulation device 10 of the present invention can also perform large-scale frequency modulation in the decreasing direction, but the operation mode is the same as the large-scale frequency modulation operation mode of the incremental direction mentioned above, and therefore will not be described again.

Furthermore, referring to FIG. 5, one of the technical features of the digital radio frequency modulation device 10 of the present invention is that the user can input the FM command by voice, wherein FIG. 5 is a second embodiment of the digital radio frequency modulation device of the present invention. System block diagram. In the second embodiment of the digital radio frequency modulation apparatus of the present invention, the digital radio frequency modulation apparatus 10 is further provided with a voice input unit 50. The voice input unit 50 is electrically connected to the codec 40.

The voice input unit 50 shown in FIG. 5 is for receiving a voice command from a user and transmitting the voice command to the codec 40. The codec 40 decodes the received voice command and outputs the decoded digital command C4 to the digital signal input unit 20. After the digital signal input unit 20 receives the digital command C4, the digital command C4 is converted into the digital command signal C5. Like the digital command signal C1 in the first embodiment, the digital command signal C5 will be transmitted to the processing unit 301 by the digital signal input unit 20.

Then, the processing unit 301 converts the digital command signal C5 into a corresponding digital frequency modulation command signal C6 and transmits it to the FM module 302. Thereby, the FM module 302 can perform the frequency modulation action according to the received digital frequency modulation command signal C5. After the FM module 302 completes the frequency modulation operation, the digital result signal R7 is generated and transmitted back to the processing unit 301.

After receiving the digital result signal R7, the processing unit 301 transmits the digital result signal R7 to the codec 40. After receiving the digital result signal R7 transmitted from the processing unit 301, the codec 40 can perform bidirectional conversion of the voice analog signal/digital signal according to the inner code, thereby converting the digital result signal R7 into the analog result signal R11 and analogizing the result signal. R11 is transmitted to the voice output unit 60. Since the voice output unit 60 is electrically connected to the codec 40, the voice output unit 60 can output after receiving the analog result signal R11, thereby informing the user that the frequency modulation command has been executed and the channel position after the frequency modulation action is performed.

In addition, the digital radio frequency modulation device 10 of the present invention can store the current channel position after the frequency modulation action according to the actual needs of the user. In actual use, the user inputs the storage instruction to the codec 40 by voice input unit 50. Subsequently, as described above, the codec 40 decodes the received voice command and outputs the decoded digital command to the digital signal input unit 20. After receiving the digital command, the digital signal input unit 20 converts the digital command into a digital command signal and transmits it to the processing unit 301. Then, the processing unit 301 converts the digital command signal into a corresponding digital storage command signal C7 and transmits the signal to the storage unit 303. Therefore, the storage unit 303 can store the data of the current channel position according to the digital storage command signal C7, and generate a digital result signal R8 after performing the storage operation, for example, a digital result signal indicating “stored channel”, and return to the digital result signal. Processing unit 301. After receiving the digital result signal R8, the processing unit 301 transmits the digital result signal R8 to the codec 40 electrically connected to the processing unit 301. After receiving the digital result signal R8, the codec 40 can perform bidirectional conversion of the voice analog signal/digital signal according to the inner code, thereby converting the digital result signal R8 into the analog result signal R12, and transmitting the analog result signal R12 to the voice output. Unit 60 is output.

As described above, the frequency modulation command input by the user through the voice input unit includes, for example, frequency modulation to a specified channel position, storage channel position, and frequency modulation to a stored channel position, but is not limited thereto.

In addition, the user can connect to the personal computer (not shown) by the digital radio frequency modulation device 10 to edit the stored channel location data in the storage unit 303 of the digital frequency modulation unit 30.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and it is to be understood that the invention may be practiced without departing from the spirit and scope of the invention. The scope of protection of the present invention is defined by the scope of the appended claims.

20‧‧‧Digital signal input unit

201‧‧‧ button

202‧‧‧Induction pulley

30‧‧‧Digital FM unit

301‧‧‧Processing unit

302‧‧‧FM module

303‧‧‧ storage unit

40‧‧‧ Codec

50‧‧‧Voice input unit

60‧‧‧Voice output unit

C4~C7‧‧‧ signal

R7, R8, R11, R12‧‧‧ result signals

Claims (10)

A digital radio frequency modulation device comprising: a digital signal input unit for inputting a first digital command and converting the first digital command into a first digital command signal; a digital frequency modulation unit electrically connected to the digital signal input The unit performs a first frequency modulation operation according to the first digital command signal to obtain a channel position and generates a first digital result signal; a code decoder electrically connected to the digital frequency modulation unit to receive the first digital result signal And converting to a first voice result signal; and a voice output unit electrically connected to the codec, the voice output unit receiving the first voice result signal and outputting; wherein the first digital result signal and The first voice result signal includes information indicating that the first frequency modulation action has been completed and the channel position is completed. The digital radio frequency modulation device of claim 1, wherein the digital frequency modulation unit further comprises a processing unit for receiving the first digital command signal, an FM module to perform the first frequency modulation action, and a storage unit. Store information about the location of the channel. The digital radio frequency modulation device according to claim 2, wherein the first digital command signal is a small range frequency modulation command signal, an automatic search frequency modulation command signal, a large range frequency modulation command signal, and a storage channel position command signal. One frequency-modulated to the stored channel position command signal or one frequency-modulated to the specified frequency position command signal. The digital radio frequency modulation device according to claim 3, wherein the small-range FM command signal is an FM command signal that is incremented or decremented by a minimum frequency modulation unit. The digital radio frequency modulation device according to claim 3, wherein the automatic search frequency modulation command signal is an FM command signal that increments or decrements a plurality of minimum frequency modulation units to a position of a radio channel closest to a current channel position. The digital radio frequency modulation device of claim 3, wherein the large-range frequency modulation command signal is to perform an increment of the plurality of automatic search frequency modulation command signals or to perform a plurality of the automatic search frequency modulation command signals. The digital radio frequency modulation device of claim 2, wherein the digital signal input unit comprises at least one button and an inductive pulley to input the first digit command. The digital radio frequency modulation device according to claim 2, further comprising a voice input unit for receiving a voice command. The digital radio frequency modulation device of claim 8, wherein the voice input unit is electrically connected to the codec, and the codec converts the voice command into the first digital command and transmits The first digital command is sent to the digital signal input unit. The digital radio frequency modulation device of claim 2, wherein the storage unit stores a second digit result signal to the processing unit after storing the data of the channel location, and the processing unit uses the second digit The result signal is transmitted to the codec, thereby being converted into a second voice result signal and outputted via the voice output unit.