JP3310387B2 - Radio selective call receiver - Google Patents

Abstract

PURPOSE:To simplify the operation and improve the handleability by informing the device carrying user of data all as speech messages even when the data are received in different format such as digital speech data, character code data, and specific codes. CONSTITUTION:In reproduction processing, speech data are read out of a memory part 14 for speech data storage and the discrimination code indicating the kind of the speech data is checked. When the discrimination code indicates the digital speech data, the read data are converted by a D/A converter 16 and an analog speech signal is outputted. When the discrimination code is a specific code indicating a regular form message, speech message data on a regular form sentence are read out of a speech dictionary 17 and an analog speech signal is outputted after synthesizing by a speech synthesizer 18. When the discrimination code indicates a character code, the syntax of a gathering of character codes is analyzed, corresponding speech data are read out of the speech dictionary 17, and an analog speech signal is outputted after synthesizing by the speech synthesizer 18 and outputted. Then the end of the speech data is decided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio paging apparatus called a pager, and more particularly to a radio paging apparatus capable of outputting a message from a caller by voice while complying with the standard of the current system. The present invention relates to a wireless calling device.

[0002]

2. Description of the Related Art A conventional radio paging system receives a device-specific identification number assigned to each receiving device, generates a ringing tone or flashing light, vibrates, or the like, thereby causing a device carrier (calling) to occur. ) Is generally notified of the call. Recently, a standard message of numbers, symbols, and kanji has been transmitted, and displayed on a receiving device.

[0003] Japanese Patent Laid-Open Publication No. 3-32123 discloses an information receiving apparatus in which an analog audio signal is once A / D-converted in a receiving device, stored in a RAM, and D / A-converted and reproduced. According to Japanese Patent Laid-Open Publication No. Hei 3-60227, after the apparatus converts an audio signal from a base station to a digital signal and accumulates the signal as a digital signal, the signal is accumulated in a message accumulating unit provided on a pager via a wireless line. A system for D / A conversion and reproduction is disclosed.

Japanese Patent Application Laid-Open No. 2-143723 discloses that a voice message is encoded by a base station and the encoded data is transmitted, and a receiving apparatus drives a speech synthesis IC based on the encoded data and converts the speech into an audio signal. A playback system is disclosed.

[0005]

In a receiving apparatus (pager) having a display means and capable of receiving voice information and character information, the person carrying the apparatus obtains the character information on the display means, and obtains the voice information on the sound reproduction means. Was getting. At this time,
An operation to look at the display screen and an operation to listen to the voice were required. The voice information may not only be input from the microphone of the telephone, but also transmit a warning or a communication registered in a computer or other storage means as a voice message in a fixed form. At this time, if the audio information was sent in the form of A / D converted audio data, the transmission line was occupied for the same time as when inputting directly from the microphone. In some cases, a device having means for transmitting information as a character code may be used in a mixed manner. For this reason, it is necessary for the device carrier to check the type of the received message on the display unit before performing a reproducing operation.

An object of the present invention is not only to voice messages input from a telephone or other means, but also to fixed-form text messages such as alarms and contacts registered in a computer or other storage means. The purpose of the present invention is to make it easier for the user to understand the message by notifying the user of the apparatus by voice, and to improve the usability by simplifying the operation.

Another object of the present invention is to improve the use efficiency of a transmission line by transmitting voice information of a fixed message in the form of character code data.

[0008]

In order to achieve the above object, the present invention receives a digital voice signal obtained by A / D converting a voice message and stores the digital voice signal in a storage means.
A means for performing A-conversion and returning to an analog sound signal, a means for synthesizing sound with a sound synthesizer based on the received character code data, and a means for determining the type of sound data are provided.

In order to achieve the above-mentioned other object, a means for storing voice message data of a fixed text, a means for determining a specific message instruction code, and a voice data for fixed text stored in a storage means are provided. A means for synthesizing speech with a speech synthesizer is provided.

[0010]

The voice output means corresponding to the received data can be selected from the plurality of voice output means by means for determining the type of voice data. As a result, even if data in different forms such as digital voice data, character code data, and specific codes are received, they can all be reported to the device carrier as voice messages, improving usability.

Further, the voice message can be notified with a small amount of information by means for determining a specific code from the received data and means for outputting a voice message of a fixed text stored in the storage means. Therefore, compared to transmitting a voice message in the form of digital voice data, the occupation time of the transmission line can be reduced.

[0012]

FIG. 1 is a block diagram of a main part of an embodiment of a receiving apparatus. The antenna 11 efficiently receives radio waves from the air, the high-frequency amplifier 12 amplifies the radio signal received by the antenna, and the demodulator 13 demodulates (detects) the modulated signal.
The voice data storage memory unit 14 stores received data only when the device identification numbers match. The D / A converter 16 removes unnecessary frequency components and converts the digital voice signal into an analog voice signal. The voice synthesizer 18 synthesizes an analog voice signal from the character code data. Data for synthesis is stored. The output amplifying unit 19 amplifies the power of the analog audio signal to sound the speaker or the earphone 20, and the operation display unit 21 includes the number of received messages, the file number of the memory,
Indicators for displaying message arrival, out of service area, etc.
Further, it is composed of a switch for instructing operations such as reproduction, repeat, protection, and erasure. The control unit 15 includes a microcomputer, a ROM, a RAM, and the like. The control unit 15 detects a synchronization signal, determines whether or not the call is addressed to itself (own station), generates a reception end signal signal (message arrival signal) to the carrier, and receives received data. It controls the entirety of the receiving apparatus 10, such as error correction of data and input / output operations with the operation display unit 21.

Next, the basic operation of the receiving apparatus will be described. FIG. 2 shows a reception processing flowchart of the receiving apparatus.
Normally, when the power is turned on, any receiving device first detects the presence or absence of a synchronization signal (step 40). If the synchronization signal is detected successfully, the receiving device receives the device identification number transmitted subsequent to the synchronization signal. Then, it compares with its own identification number assigned to each device. As a result, the receiving device that did not match returns to the head again and waits for the next synchronization signal, but only the matching receiving device moves to the next step and enters a mode for receiving a message (step 41). Here, the data detected by the demodulation unit 13 is sequentially stored in the audio data storage memory unit 14 (step 42). This operation is continued until the voice data storage memory 14 becomes full and overflows, an end code is received, or until the number of data determined in advance is received (steps 42, 43, 44). Thereafter, a ringing tone, flashing of light, vibration, or the like is generated to notify the device carrier that a message addressed to the user (self-station) has arrived, and the reception process is completed (step 45).

FIG. 3 shows an example of an information format transmitted from the base station. In the contents of the information format, the synchronization code 61 and the identification number 62 are calling signals of the receiving device. If the calling signal is for the own station, the following information becomes valid. Although the type of information is not particularly limited, there are control information 63 such as date and time, a numeric message 64, an identification code 65 indicating the type of voice data, voice data 66, and the like. The voice message is composed of a combination of an identification code 65 and voice data 66. The contents of the audio data 66 include, for example, a digital audio signal, a character code, a specific code, and the like.

FIG. 4 shows a flowchart of a reproducing process of the receiving apparatus. The reproduction operation is started by pressing the “mode” switch 102 of the receiver 100 (see FIG. 5) to set the reproduction mode. First, the user selects a message to be reproduced by pressing the selection switch 103 (step 70), and then presses the execution button (switch) 104 to start reproduction of the voice message. In the reproduction process, the audio data 6
6 is read from the voice data storage memory unit 14 (step 71), and the identification code 65 indicating the type of voice data is checked (step 72). Identification code 65
Indicates digital audio data, the read data is converted by the D / A converter 16 (step 73), and an analog audio signal is output (step 78). Identification code 6
When 5 is a specific code indicating a fixed-form text message, the fixed-form text message data is read from the voice dictionary 17 (step 74), synthesized by the voice synthesizer 18 (step 77), and an analog voice signal is output. (Step 7
8). When the identification code 65 indicates a character code, the group of character codes is syntax-analyzed (step 75), and the corresponding voice data is read from the voice dictionary 17 (step 7).
6) Synthesize by the voice synthesizer 18 (step 77) and output an analog voice signal (step 78). Thereafter, the end of the audio data is determined (step 79). If it is not the end data, the reproduction process is continued, and if it is the end data, the reproduction operation is ended.

FIG. 5 is an explanatory diagram of a receiving apparatus (voice pager) showing one embodiment of the present invention. The receiving apparatus 100 includes a display unit 101, a mode selection switch 102, a message selection switch 103, an execution switch 104, a power switch 105, a stop switch 107, and a volume switch 1
08, a speaker 106, an earphone terminal 109, an upper scroll switch 110, and a lower scroll switch 111. When the amount of received text messages is large, not all can be displayed on the display unit, so that the scroll switches 110 and 111 are operated to display the remaining hidden messages. According to the present invention, since the text message can also be confirmed by voice, the text message display function is an auxiliary confirmation function.

[0017]

According to the present invention, the device carrier can confirm the contents of the message only by performing a reproducing operation of listening to the sound when there is an incoming call, so that the operation is simplified and the usability is improved as compared with the related art.

[0018] Further, since the purpose of transmitting voice by information of different forms can be achieved, the use efficiency of the transmission line can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram of a receiving apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a reception processing operation of the reception device.

FIG. 3 is a format diagram of information transmitted from a base station to a receiving device.

FIG. 4 is a flowchart showing a reproduction processing operation of the receiving device.

FIG. 5 is an explanatory diagram of a receiving device showing one embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Receiving apparatus, 11 ... Antenna, 12 ... High frequency amplification part, 13 ... Demodulation part, 14 ... Memory part for audio | voice data storage,
15: control unit, 16: D / A conversion unit, 17: voice dictionary,
18 Voice synthesizer, 19 Output amplification unit, 20 Speaker or earphone, 21 Operation display unit.

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Kenichi Mizuishi 1-280 Higashi Koikebo, Kokubunji-shi, Tokyo Inside Central Research Laboratory, Hitachi, Ltd. (56) References JP-A-5-63631 (JP, A) JP-A-64 −24524 (JP, A) International Publication 92/5640 (WO, A1) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04B ^7/ 24-7/26 102 H04Q ^7/ 00-7/38

Claims (2)

(57) [Claims] 1. A storage means for receiving and storing a voice message transmitted from a base station, a means for performing D / A conversion of received digital voice data and returning it to a voice signal by a selection operation, and receiving character code data In the wireless selective call receiving device including means for synthesizing voice with a voice synthesizer based on the voice data and means for determining the type of the data, the voice message reproducing means is selected by an identification code indicating the type of voice data. Wireless selective call receiving device. 2. The fixed form message voice data according to claim 1, wherein the fixed form message voice data is stored in the storage means of the receiving device, and a specific fixed form message is selected based on the received specific code data. A radio selective call receiving device that synthesizes fixed form messages with a voice synthesizer and outputs them.