JPH0657318U - Intercom system - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to an intercom system, and an object thereof is to provide an intercom system in which the operator himself / herself can grasp the voice level of the operator notified to the patient side. [Constitution] In an intercom system in which a patient side and an operator side notify each other via a speaker, a level meter is provided on a signal line notified from the operator side by color-coded display of signal levels.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an intercom system, and more particularly to improvement of a notification method from an operator side to a patient side.

[0002]

[Prior art]

 FIG. 5 is a conceptual diagram of a conventional intercom system (two-way communication system). This type of intercom system is used for an affected area measuring apparatus such as an X-ray TV apparatus. In the figure, 1 and 2 are signal lines connecting the operator and the patient, respectively. Reference numeral 3 is a microphone for receiving the voice from the patient, 4 is an amplifier for amplifying the voice signal detected by the microphone 3 to a required level, and 5 is a speaker for notifying an operator's message. Reference numeral 6 is a microphone for receiving a voice from an operator, 7 is an amplifier for amplifying the voice signal detected by the microphone 6 to a required level, and 8 is a speaker for notifying a patient of an operator's message.

As described above, the intercom system is provided with a pair of a microphone and a speaker on the operator side and a pair of speakers on the patient side, and exchanges messages with each other using the microphone and the speaker. There is.

[0004]

[Problems to be solved by the device]

 In the above-mentioned conventional system, both the operator side and the patient side have a microphone and a speaker so that they can talk to each other. Since the gains of the amplifiers 4 and 7 of the respective signal lines can be adjusted only by the operator side, the operator can adjust the voice from the patient side while actually listening. However, it was completely unknown whether the operator's own voice was transmitted to the patient at an appropriate volume.

The present invention has been made in view of the above problems, and an object of the present invention is to provide an intercom system in which the operator can grasp the level of the operator's voice notified to the patient side.

[0006]

[Means for Solving the Problems]

 The present invention, which solves the above-mentioned problems, provides an intercom system in which a patient side and an operator side notify each other via a speaker, and a level for color-coded display of the signal level on the signal line notified from the operator side. It is characterized by the provision of a meter.

[0007]

[Action]

 A level meter that displays the signal level in different colors is provided on the signal line that sends a message from the operator to the patient. As a result, the operator can recognize the voice level being spoken by observing the color of the level meter and grasp it.

[0008]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a configuration block diagram showing an embodiment of the present invention. The same parts as those in FIG. 5 are designated by the same reference numerals. In the figure, the configuration of the signal line 1 for notifying the operator from the patient side is the same as that of the conventional example shown in FIG.

The configuration of the signal line 2 for notifying the patient from the operator characterizes the present invention. That is, 10 is an equalizer that adjusts the frequency characteristic of the detected audio signal of the microphone 6, and 11 is an amplifier that amplifies the output of the equalizer 10. The volumes 10a and 10b for changing the frequency characteristics and the gain of the equalizer 10 and the amplifier 11 are designed to move in conjunction with each other (for example, a double volume).

Reference numeral 20 is a level meter for displaying the audio level on the signal line 2 in different colors. The level meter 20 is designed to display the colors of green, yellow, and orange in ascending order of sound level. The operation of the system configured as described above is as follows.

First, in the call from the patient side to the operator, the voice of the patient is detected from the microphone 3 as usual, and the call is sent to the operator side via the signal line 1. On the operator side, a voice is generated from the speaker 5 while being adjusted to an appropriate level by the amplifier 4, and the operator talks.

Next, a call from the operator side to the patient side will be described. When the operator makes a call to the patient, the voice is detected by the microphone 6. This audio signal subsequently enters the equalizer 10. The equalizer 10 and the following amplifier 11 are designed to operate in conjunction with each other.

In the control here, the audible characteristic is corrected by the equalizer 10 which is linked to the gain controller (volume 11a) of the amplifier 11. With this control, when the voice becomes louder than a certain level, the high range is raised and the hearing sensitivity to the hearing impaired is corrected.

FIG. 2 is a diagram showing human hearing loss characteristics. The horizontal axis represents frequency and the vertical axis represents the degree of hearing loss (dB). Of these characteristics, f1 is 50 years old, f2 is 65 years old, and f3 is 82 years old. In both cases, the deterioration of the characteristics can be seen in the important voice region (800 Hz to 2500 Hz, the shaded area in the figure). Therefore, for such a hearing-impaired person, the gain in the important voice region is raised to make it easier for the patient to hear the operator's voice.

Here, the gain for the audio level (volume) displayed on the level meter 20 is assumed to be gain A: low gain and gain B: high gain. As for each gain, the gain A is mainly used for a hearing-impaired person, and the gain B is used for a hearing-impaired person. In the case of the gain B, the frequency is corrected by the equalizer 10 in accordance with the hearing sense of the hearing impaired person. The amount of this correction is such that the relationship curve between the frequency and the hearing loss in the elderly in the characteristics of FIG. 2 becomes nearly flat. That is, the gain in the high frequency region is increased to make it easier for the deaf person to hear the voice.

FIG. 3 is a diagram showing an example of speaker output characteristics. The horizontal axis is the gain and the vertical axis is the speaker output. In the low gain region (gain A region), the level meter 20 lights in green, in the high gain region (gain B region) in yellow, and in the high gain peak region in orange. As a result, the operator can easily understand at what level of voice level the call is transmitted to the patient.

FIG. 4 is a diagram showing an example of gain correction characteristics. The horizontal axis is the frequency and the vertical axis is the gain correction amount. From 800 Hz to 2500 Hz, which is the important voice region, the gain is raised for the hearing impaired (gain B), and the same gain is normally maintained for the hearing person (gain A).

[0018]

[Effect of device]

 As described above in detail, according to the present invention, the following effects can be obtained. The operator can visually recognize his / her voice that he / she wants to convey to the patient. The volume and sound quality can be changed according to the patient (especially age-related hearing loss) and can be visually recognized. This eliminates the conventional hassle of screaming or forcibly pulling the microphone when there is no patient reaction.

As described above, according to the present invention, it is possible to provide an intercom system in which the operator himself / herself can grasp the voice level of the operator notified to the patient side.

[Brief description of drawings]

FIG. 1 is a configuration block diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing a hearing loss characteristic of a person.

FIG. 3 is a diagram showing an example of output characteristics of a speaker.

FIG. 4 is a diagram showing an example of a gain correction characteristic.

FIG. 5 is a conceptual diagram of a conventional system.

[Explanation of symbols]

 1 Signal Line 2 Signal Line 3 Microphone 4 Amplifier 5 Speaker 6 Microphone 8 Speaker 10 Equalizer 10a Volume 11 Amplifier 11a Volume 20 Level Meter

Claims (2)

[Scope of utility model registration request] 1. An intercom system in which a patient side and an operator side notify each other via a speaker, and a level meter is provided on a signal line notified from the operator side by color coding. An intercom system characterized by. 2. The frequency characteristic and the gain of the signal are adjusted according to the hearing of the patient by operating the equalizer and the amplifier inserted in the signal line notified from the operator side in conjunction with each other. The intercom system according to claim 1, wherein