JPH04372231A - Radio equipment - Google Patents

Abstract

PURPOSE:To allow the radio equipment to satisfy a repeater function substantially by using a portable radio equipment used in parts with an on-vehicle radio equipment so as to intercept a call received by the on-vehicle radio equipment and allowing the portable radio equipment to reply the call. CONSTITUTION:The radio equipment is provided with a 1st identification number register 5 to identify its own station and a 2nd identification number register 10 to identify an identification number of other radio equipment used in pairs with its own station. Then the equipment replies immediately to an individual calling to the 1st identification number as an ACK data or the like and the equipment only intercepts a data with respect to the individual calling to the 2nd identification number and enters the speech mode. As a result, in the case of individual calling by using the 1st identification number, the processing such as a reply of an ACK data is implemented, the speech with an opposite party is started, and in the case of the individual calling of the 2nd identification number, since the calling data is intercepted, the talking with the opposite party is stared without processing such as a reply of an ACK data.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio having an identification number and controlling a call mode by a select call signal.

0002

2. Description of the Related Art FIG. 2 is a block diagram showing a conventional embodiment of a radio device having an identification number. Reference numeral 1 denotes a transmitting/receiving switching circuit, which connects the antenna to the receiving circuit during reception, and connects the antenna to the transmitting circuit during transmission. 2 is a receiving circuit which receives radio waves and obtains a demodulated output. A demodulation circuit 3 obtains a digital signal from the demodulation output of the reception circuit 2. 4 is a decoding circuit, which has a bit synchronization/frame synchronization detection function, an error correction function, and an identification number verification function. Reference numeral 5 denotes an identification number register 1, which indicates the identification number of the radio device referred to by the identification number verification function of the decoding circuit 4. A microcomputer 6 analyzes received data and edits transmitted data. 7 is an encoding circuit, which has an identification number addition function, an error correction parity addition function, and a frame synchronization/bit synchronization addition function. A modulation circuit 8 converts the digital signal from the encoding circuit 7 into a predetermined modulation input signal. Reference numeral 9 denotes a transmitting circuit which supplies a modulated input signal with a radio wave of a predetermined frequency and a predetermined power to the antenna via the transmitting/receiving switching circuit 1.

When the identification numbers match in the decoding circuit 4, a reception interrupt signal 4-1 is output to the microcomputer 6, and data is taken in from the reception data line 4-2. This data is select call data sent from the other party's radio device along with an identification number. The microcomputer 6 analyzes and processes this data, determines whether a response is necessary, and if necessary, edits the response data and sends it to the encoding circuit 7 through the transmission data line 6-1, and transmits the transmission interrupt signal 7-1. , and send them one after another. Also, when transmitting select call data from the own station, the data is edited by the microcomputer 6 and transmitted to the encoding circuit 7 in the same manner as described above. Because the radio has an identification number in this way, it is effective for sending and receiving SELECALL data, and unlike radios that have a simple voice communication function,
It has become significantly more multifunctional. However, this function is effective only when a person is in the vicinity or when they return to the vicinity; unless the radio has a relay function, it is ineffective when a person is away from the radio. .

0004

[Problem to be solved by the invention] In the above-mentioned prior art,
Even though wireless devices became multifunctional by exchanging data with each other, there were limitations that made them effective only on the assumption that a person was in the vicinity of the wireless device. This drawback becomes particularly noticeable when the radio is mounted on a vehicle in terms of transmission power and power supply. In order to solve this drawback, the present invention uses a portable radio device used in combination with a vehicle-mounted radio device to intercept incoming calls to the vehicle-mounted radio device and responds on the portable radio device side. The purpose is to satisfy the repeater function described in .

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention has a first identification number register for identifying the own station, and also has a first identification number register for identifying the own station, and also has a It has a second identification number register for identifying the identification number, and responds immediately with ACK data etc. to individual calls to the first identification number, and responds with data to individual calls to the second identification number. The system only intercepts the information and then enters the call mode.

[0006]

[Operation] As a result, when this radio is called individually with the first identification number, it starts the conversation with the other party after processing such as responding with ACK data, and also calls the individual with the second identification number. When there is a call, the call data is intercepted and a conversation with the other party is started without performing any processing such as an ACK data response. Therefore, users who use this wireless device in combination with an in-vehicle version will be able to maintain communication with other parties even when they are away from their vehicle.

[0007]

[Embodiment] An embodiment of the present invention will be described below with reference to FIG. Reference numeral 1 denotes a transmitting/receiving switching circuit, which connects the antenna to the receiving circuit during reception, and connects the antenna to the transmitting circuit during transmission. 2
is a receiving circuit that receives radio waves and obtains a demodulated output. A demodulation circuit 3 obtains a digital signal output from the demodulation output of the reception circuit 2. 4 is a decoding circuit, which has a bit synchronization/frame synchronization detection function, an error correction function, and an identification number verification function. 5 is the first identification number register, and the decoding circuit 4
Indicates the identification number of the wireless device that indicates the own station referenced from the identification number verification function. 10 is a second identification number register;
Indicates the identification number of a wireless device that indicates another station that is referred to by the identification number verification function of the decoding circuit 4. A microcomputer 6 analyzes received data and edits transmitted data. 7 is an encoding circuit, which has an identification number addition function, an error correction parity addition function, and a frame synchronization/bit synchronization addition function. A modulation circuit 8 converts the digital signal of the encoding circuit 7 into a predetermined modulation input signal. Reference numeral 9 denotes a transmitting circuit which supplies radio waves of a predetermined frequency and predetermined power to the antenna via the transmitting/receiving switching circuit 1.

The first identification number register 5 in the decoding circuit 4
When the identification number matches the identification number, a reception interrupt signal 4-1 is output to the microcomputer 6, and data is read from the reception data line 4-2. Similarly, when the identification number matches the identification number in the second identification number register 10, the received data is taken into the microcomputer 6. These data are select call data sent together with an identification number from the other party's radio. The microcomputer 6 analyzes and processes this data, determines whether a response is necessary, and if necessary, edits the response data and sends it to the encoding circuit 7 through the transmission data line 6-1, and sends it to the transmission interrupt signal 7-1. , and send them one after another. Among the two types of identification number selector data, in the case of the first identification number, after returning the response data, the call mode is entered.
In the case of the second identification number, the communication mode is entered by simply intercepting the select call data without returning any response data. Also, when transmitting select call data from the own station, the data is edited by the microcomputer 6 and transmitted to the encoding circuit 7 in the same manner as described above. In this case, only the first identification number is used.

[0009]

According to the present invention, a repeater function can be obtained by adding a relay device and having a simple communication device without adding a relay function to a wireless device. This effect becomes noticeable when a single person uses both an in-vehicle radio and a portable radio, and while the advantages of the large transmission power and power supply of the in-vehicle radio and the mobility of the portable radio are utilized, the advantage of using a repeater as well Substantially the same functionality as a repeater can be achieved without incurring additional costs.

[Brief explanation of drawings]

Figure 1 FIG. 1 is a block diagram showing the overall configuration of the present invention. Figure 2 FIG. 1 is a block diagram showing the overall configuration of a conventional embodiment.

[Explanation of symbols]

1 Transmission/reception switching circuit 2 Receiving circuit 3 Demodulation circuit 4 Decoding circuit 5 Identification number register 1 6. Microcomputer 7 Encoding circuit 8 Modulation circuit 9 Transmission circuit 10 Identification number register 2

Claims (1)

[Claims] Claim 1: A transmit/receive switching circuit that changes the antenna connection depending on reception/transmission, a receiving circuit that obtains a demodulated output from received radio waves, and a demodulator that obtains a digital signal from the demodulated output in a radio device that makes a call using a select call signal with an identification number. Detects each bit/frame synchronization signal from the circuit and digital signal,
A decoding circuit with error correction and identification number verification functions, a first identification number register for identifying the own station, a second identification number register for identifying other radios used in combination with the own station, and an identification number register. A number and parity for error correction are added, and the frame
An encoding circuit that adds synchronization to each bit, a modulation circuit that converts this digital output into a modulation input signal, a transmission circuit that converts the modulation input into a predetermined frequency and power and sends it to the antenna via a transmission/reception switching circuit, and analysis of transmitted and received data. - Consists of a microcomputer that performs editing, and when the receiving system receives a select call signal and the identification number in the signal matches the number in the first identification number register, the transmitting system sends response data and then goes into call mode. A radio device is characterized in that when the number matches the number in the second identification register, the radio device only intercepts the signal and enters a talk mode without transmitting response data.