JPS63281531A - Selective calling receiver - Google Patents

Abstract

PURPOSE:To judge a receiving condition without watching a display part by changing a singing method according to the case when both a selective calling signal and a transfer information signal are correctly received and the case when a former only is correctly received. CONSTITUTION:A signal sent from a base station is composed of a selective, calling signal 1 and a transfer information signal 2. After the electric wave sent from the base station is returned to a signal sent from the base station at a receiving part 4 after it is converted to an electric signal with an antenna 3, the receiver number information in an ID memory part 6 and the received signal 1 are collated by a decoding part 5. As the result, at the time of the coincidence, a singing driving part 7 is controlled, the singing is executed by a speaker 8 and the contents of the signal 2 are displayed to a display part 9. In this case, according to the case when the signal 2 is received in an error correctable scope, and the case when the error is detected over the error correctably scope and the receiving is not executed, the singing is executed by a remote frequency and thus, discrimination can be executed.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention is based on the following: *When a calling signal is received from a base station and the selective calling signal matches a unique number given to the base station in advance, This invention relates to a selective calling receiver (hereinafter also referred to as a radio calling receiver) that is configured to emit sound waves to notify the person carrying the receiver and to display the content of transmitted information in a calling signal.

[Conventional technology]

The selective call receiver with display function transmits from the base station (
The selective calling signal and the accompanying transmission information signal are received, the selective calling signal is checked against the receiver's unique number, and only if they match]! This system notifies the person carrying the receiver of an incoming call by emitting sound waves at a certain frequency (also referred to as ringing in this specification), and also displays a transmission information signal.

In this case, if the selective call signal is received incorrectly, another receiver will be called, and if the transmitted information signal is received incorrectly, the information content will change. uses a signal that allows error correction and error detection.

Therefore, it is possible for the receiver to detect that the selective calling signal was received correctly, but the transmitted information was received incorrectly.In this case, the receiver operates as follows. Don't judge.

■ It determines that there is an incoming call, and the phone rings but does not display anything.

■ When an incoming call is received, it is rejected, a sound is made, and the incorrect part is also displayed.

■ It determines that there is an incoming call, makes a sound, and displays the error message after clarifying the error.

The following methods have been adopted.

[Problem that the invention seeks to solve]

The method of making a sound when it is determined that there is an incoming call in the conventional selective calling receiver as described above is the same regardless of the receiving state of the transmission information signal, and the method of making a sound when it is determined that there is an incoming call is the same regardless of the receiving state of the transmission information signal. It was impossible to do so.

Therefore, it is unclear whether or not the received information including the transmitted information signal is being accurately received until the display section is viewed, which is a disadvantage in that it is extremely troublesome for the receiver to be used.

SUMMARY OF THE INVENTION In view of these conventional drawbacks, it is an object of the present invention to provide a receiver capable of determining the reception state without looking at the display section.

[Means for solving problems]

According to the invention, the above-mentioned object is achieved by the means specified in the claims.

That is, the main feature of the present invention is that the sounding method is changed depending on whether both the selective call signal and the transmission information signal are accurately received and when only the former is accurately received.

〔Example〕

FIG. 1 is a diagram showing a part of the signal transmitted from the base station, which consists of a selective paging signal 1 and a transmission information signal 2. As shown in FIG.

FIG. 2 is a diagram showing an example of the configuration of a focal line calling receiver with a display function, in which the radio waves sent from the base station by the signals shown in FIG. 1 are converted into electrical signals by the antenna 3, and then 4
After the signal is returned to the one shown in FIG. 1, the decoder 5 checks the receiver number information in the ID memory s6 and the received selective call signal, and if they match, the sound driver 7, the speaker 8 produces a sound, and the content of the transmission information signal is displayed on the display section 9.

In this case, there are four combinations of reception states of the selective call signal and the transmission information signal, as shown in Table 1.

Table 1 Among these, if the selective calling signal does not match the receiver number and is not received, it is determined that the call is to another receiver, and no sound is made, regardless of whether or not the transmission information signal is received. When a selective calling signal is received, it is necessary to determine that the receiver is being called and to sound it.

However, in this case, the transmission information signal is received within an error-correctable range, and the error-correctable TIIA! ! !
There are cases where an error is detected and the data is not received.

This kind of reception condition is based on frequencies r& that are far enough apart to be audible (for example, as shown in Table 1, the former is 2.000 Hz and the latter is 1,000 Hz).
Identification is possible by making the t' sound.

Furthermore, even if the sound frequency is constant regardless of the reception state, it is effective to change the sound pattern (sound rhythm) to audibly identify the reception state.

FIG. 3 is a diagram showing an example of this, which further divides the reception state of the transmitted information signal into a case where there is no error and a case where there is an error but within the error correctable range. An example of a sound pattern to be included and identified is shown.

Note that the frequency of the sound may be changed in accordance with this pattern. In other words, the case of selective call signal reception described above (for example, the tone is sounded at 2.000 Hz) can be divided into two, and the two can be made to sound at, for example, 2,000 Hz and 2,500 Hz.

〔Effect of the invention〕

As explained above, in the present invention, since the sounding method differs depending on the reception state of the transmitted information signal, it is possible to determine whether or not the transmitted information is accurately displayed only by the sound, which improves the convenience of the receiver. This has the advantage of further increasing the

In addition, when measuring the local paging rate within a wireless zone, for example, when conducting a serviceability survey, it is easy to separate the paging rate for only selective paging signals and the overall paging rate including transmission information signals. There are advantages to being able to investigate.

Furthermore, when measuring the sensitivity of the receiver, the sensitivity of only the selective calling signal and the overall sensitivity can be measured separately.

[Brief explanation of drawings]

Figure 1 shows a part of the signal being sent from the base station, and Figure 2 shows the display 8! FIG. 3 is a diagram showing an example of the configuration of a radio paging receiver with functions, and FIG. 3 is a diagram showing an example of a sound pattern. 1...Selective call signal, 2...
・Transmission information signal, 3...Antenna,
4... Receiving section, 5... Decoding section, 6... ID storage section, 7.
...Sound drive unit, 8 ...Speaker,
9...Display Department Agent Patent Attorney Hon.
Takashi Ma Figure 1 Figure Z Figure 3

Claims (1)

[Claims] (1) A call signal consisting of a selective call signal and a transmission information signal transmitted from a radio base station is received, and the selective call signal matches a unique number given to the self in advance. Alternatively, if the device is compatible, it is a selective calling receiver configured to emit sound waves of an audible frequency and display the contents of the transmitted information, and to identify the receiving state according to the receiving state of the transmitted information. A selective call receiver characterized in that it is provided with means for changing the state of output sound waves. (2) The selective call receiver according to claim (1), which changes the frequency of the sound waves it outputs depending on the reception state of the transmitted information. (3) The selective call receiver according to claim (1), which changes the sound pattern of the sound waves output according to the reception state of the transmitted information.