RU96113107A

RU96113107A - FULLY AUTOMATED RADIO PAGING SYSTEM COMPATIBLE WITH AUDIO AND DIGITAL SIGNALS

Info

Publication number: RU96113107A
Application number: RU96113107/09A
Authority: RU
Inventors: Жиньуань Юань
Original assignee: Ляонинь Гоньши Электроник Ко., Лтд
Priority date: 1993-11-18
Filing date: 1994-11-18
Publication date: 1998-09-27

Claims

1. A fully automated paging radio system compatible with audio and digital signals, capable of transmitting a combined audio and digital code signal containing central paging radios and pagers, the central paging radio station consisting of a telephone line interface, means for processing audio and digital signals connected to its output, and a transmitter associated with a means for processing audio and digital signals, characterized in that the means for processing audio and digital ovyh signals comprises a CPU and a disk drive, computer memory, the audio interface unit and a digital signal, audio coding block and digital signals connected to the bus and a transmitter having an input connected to the audio coding unit and a digital signal; pagers are compatible with sound and digital signals, pagers configured to receive a combined audio and digital code signal, a purely digital and purely sound signal, and the ability to store audio and digital information.

2. A fully automated paging radio system compatible with audio and digital signals according to claim 1, characterized in that the input of the interface unit for audio and digital signals is connected to the telephone line interface for reading from a disk
a drive for a sound invitation signal, transmitting this signal to a telephone line, receiving a digital code and analog audio signal transmitted from a telephone, converting an analog audio signal into a corresponding digital signal and storing them on a disk drive; the central processor performs the combined coding of a digital signal and a sampled audio signal to create a queue of paging information and store it on a disk drive; an audio and digital signal encoding unit converts a digital paging signal in a disk drive into a paging code radio signal and converts a digital audio signal into an analog audio signal, and transmits them through a transmitter controlled by a central processor; the output paging signal from the means for processing audio and digital signals consists of a prefix code T1, a frame (frames) of digital information T2 and a frame (frames) of analog information T3, and the duration of the frame of analog information is variable; their order is as follows: T1, T2 ... T3 ... T1; in this case, the frame (frames) of analog information is preceded by a leading code frame of analog information, and another prefix code T1 encloses it, showing the end of the frame of analog information, the duration of the analog frame may be 0; the address code of the digital information frame T2 contains a functional category (s) showing whether the analog information frame follows it and the type of paging information.

3. A fully automated paging radio system compatible with audio and digital signals, according to claim 1, distinguishes
in that the disk drive is connected to the bus and the information received by the audio and digital signal interface unit and the generated paging information library with the type of paging information are stored on it and then transmitted through the audio and digital signal processing means and the transmitter under the control of the central processor; to inform about the type of message, the means for processing audio and digital signals transmits digital paging, indicating that there is a message to inform the subscriber, and allows the subscriber to request this message by phone; when requesting information, the audio and digital signal processing means searches for relevant information from the disk drive and issues it through the audio and digital signal interface unit and the telephone line interface to the subscriber in response to his request.

4. A fully automated paging radio system compatible with audio and digital signals according to claim 1, characterized in that the coding unit for audio and digital signals contains a data input / output interface, a speech synthesizer, a paging encoder, an amplification circuit, a level conversion circuit and a circuit switching connected to the bus; a paging encoder converts a digital paging signal into a paging code radio signal and transmits its modulation scheme through a level conversion circuit and a switching circuit controlled by a central processor; speech synthesizer converts digital audio into
an analog audio signal and transmits it to the modulation circuit through the amplification circuit and the switching circuit under the control of the central processor; the data input / output interface is connected to the bus and its output is connected to the output of the control signal of the connection circuit for controlling the selection of an analog or digital signal and transmitting the selected signal to the modulation circuit.

5. A fully automated paging radio system compatible with audio and digital signals according to claim 1, characterized in that the pager compatible with audio and digital signals, comprises receiving means, a signal processing unit, a microprocessor, a sound recording / reproducing unit, and a display, Memory, operating switch, warning circuit and power circuit connected to the microprocessor; the output of the receiver is connected to a signal processing unit, which sends a digital signal to the microprocessor and provides an analog signal to the input of the audio recording / reproducing unit, the control input of the audio recording / reproducing unit is connected to the microprocessor, and its output is connected to the loudspeaker; a pager compatible with sound and digital signals operates in accordance with its algorithm under the control of a microprocessor; compatible with audio and digital signals, the pager receives a paging digital signal that matches its own address code and stores it in the memory, and decodes the functional bits of the address code to determine whether there are frames of analog information; if they are, he begins to accept
mother and save the analog sound signal after receiving the leading code frame of the analog information, then begins to receive the indicator end of the frame of analog information, stops receiving the analog information, and gives a warning signal to the subscriber after receiving the indicator of the end of the frame of analog information.

6. A fully automated paging radio system compatible with sound and digital signals according to claim 5, characterized in that the signal processing unit includes a filter circuit and a shaping circuit; the analog signal at the output of the filter circuit is an input signal to the audio recording / reproducing unit; the digital signal at the output of the formation circuit is transmitted to the microprocessor.

7. A fully automated paging radio system compatible with audio and digital signals according to claim 5, characterized in that the audio recording / reproducing unit includes a speech synthesizer and memory connected to a microprocessor, a switching circuit associated with a speech synthesizer, an amplifier circuit power associated with the switching circuit, wherein the power amplifier is connected to a loudspeaker; the output of the filter circuit is respectively associated with the signal input of the speech synthesizer and the input of the switching circuit; if a pager compatible with sound and digital signals receives an analog sound paging, the microprocessor decodes the functional bits of the address code and instructs the speech synthesizer to convert the analog signal into a digital signal and store it in the memory; if pager compatible with audio and digital signals
receives digital audio paging, the microprocessor decodes the functional bits of the address code and stores the digital audio signal in the memory; if the query switch is pressed from the operational switches of a pager compatible with audio and digital signals, the microprocessor instructs the speech synthesizer to read data from the memory and synthesize this data into an analog audio signal and output it through a switching circuit and a power amplifier circuit; if a pager compatible with audio and digital signals receives a broadcast audio signal, the microprocessor decodes the functional bits of the address code and instructs the switching circuit to pass the received broadcast audio signal to the output through the switching circuit and the power amplifier circuit so that the broadcast signal can be adopted compatible with audio and digital pager signals.

8. A fully automated paging radio system compatible with audio and digital signals according to claim 5, characterized in that the audio recording / reproducing unit is an integrated recording / reproducing circuit of an analog audio signal, the signal input and the auxiliary input of which are connected to the output of the filter circuit, the sound signal output is connected to the loudspeaker, and the control signal line is connected to the microprocessor; if a pager compatible with audio and digital signals receives an analog audio paging, the microprocessor decodes the functional bits of the address code and instructs to save the received analog signal an audio signal to an integrated recording / reproducing circuit of an analog audio signal; if the query switch is pressed from the operational switches of a pager compatible with audio and digital signals, the microprocessor instructs the integrated recording / reproducing circuit of the analog audio signal to output the audio information stored in it to the output of the audio signal; if a pager compatible with audio and digital signals receives a broadcast audio signal, the microprocessor decodes the functional bits of the address code and issues a warning signal and an analog audio signal recording / playback integrated circuit command to output an analog audio signal to its auxiliary input from its output, so that it is compatible with audio and With digital signals, the pager could receive a broadcast sound signal.

9. A fully automated paging radio system compatible with audio and digital signals according to claims 2, 7 or 8, characterized in that the means for processing audio and digital signals is a means for processing audio and digital signals, configured to transmit an audio broadcast signal through a transmitter, and a pager compatible with audio and digital signals is a pager configured to receive a broadcast audio signal.