JPH0862724A - Remote controller used in common with microphone in tracer for ohp - Google Patents

Abstract

PURPOSE: To decrease articles to be carried and to facilitate handling of a user for OHP by adding a microphone for collecting an operator's voice to a remote controller for performing the remote control thereof, and further to make the remote controller used in common with the microphone by switching operation and explanation by using a single remote controller. CONSTITUTION: In the case of use as the remote controller, when a key 2 for the next page is downwardly pushed, the controller 6 detects its condition at this time, and a control signal corresponding to the downwardly pushed key 2 is output to a driver 7. The driver 7 emits an infrared ray by driving an infrared ray-emitting part 5 in accordance with the control signal to irradiate the tracer for OHP therewith. In the case of use as the microphone, when a switch 3 is set to the ON position, a voice analog signal from the microphone 4 is converted to binary data by a signal amplifier 9 and is output to the driver 7. The driver 7 executes modulation by using the carrier frequency which is different from the data in a keyboard 2, and emits the infrared ray by driving the infrared ray-emitting part 5 to irradiate a receiver therewith and to send a signal to a speaker on the receiver side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote controller for use in an OHP projector, and more particularly, it is used not only for displaying an image on an OHP projector but also for a user. The present invention relates to a remote controller in which a microphone is added to collect a voice, make it louder from a separately prepared speaker, and transmit information to a viewer more clearly.

[0002]

2. Description of the Related Art Conventionally, when making a presentation using a microphone while pointing a point of interest on a screen displayed by an OHP projector, a rod-type indicator rod, a laser pointer, etc., and a microphone are separately prepared. Since I was using it, I bought a spear for the presenter.

[0003]

In the conventional working method,
When a remote controller and an indicator rod or a laser pointer for remotely controlling an OHP transparator were used, and when a microphone was used, they were held in both hands, and they were held separately and operated.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and gives instructions such as control of turning on / off the power of an OHP transposer and exchange of display data. It is a remote controller, which proposes a remote controller that also serves as a microphone of an OHP transilluminator, which is equipped with a sound collector for collecting the voice of the user in addition to the above-mentioned control.

[0005]

A single unit in which a sound collector capable of collecting the voice of the presenter and its circuit are added to a circuit for generating a control signal for controlling the OHP projector by pressing a key as a remote controller. The remote controller is used to switch between operation and description.

[0006]

An embodiment of the present invention will be described with reference to the accompanying drawings. 1 and 2 show a first embodiment of the present invention, and FIGS. 3 and 4 show a second embodiment of the present invention. First, the first embodiment will be described. FIG. 1 is an external perspective view. The remote controller 1 is a key composed of a plurality of keys for controlling an OHP projector (not shown).
There are provided a board 2, an infrared light emitting section 5 for transmitting a control signal as an infrared signal to an OHP projector, a microphone 4 as a sound collector, and a switch 3 for turning on / off a voice signal.

FIG. 2 is an electrical block diagram. When it is used as a remote controller, the description of the desired key of the keyboard 2, for example, the contents currently displayed on the OHP projector is completed, and the contents of the next page are displayed. When the key for the next page for reading from the registered FD and displaying it on the screen is pushed down, the controller 6 detects the state and the control signal corresponding to this depressed key is sent. The binary data is output to the driver 7. The driver 7 drives the infrared emitting section 5 based on the binary control signal, and the infrared emitting section 5 emits infrared rays. This emitted infrared ray is applied to an OHP projector (not shown).
When the OHP transilluminator on the receiving side receives the key data, for example, in the case of the next page, it corresponds to the page next to the page currently displayed. A file is read from the FD, the data is further developed and displayed on the liquid crystal screen, and the operation of the OHP projector is performed.

When used as a microphone, switch 3
The signal line is connected by setting the setting of 1 to ON, the audio analog signal from the microphone 4 is amplified by the signal amplifier 9, and the signal level is sampled at regular intervals.
It is converted into value data and output to the driver 7. The driver 7 performs modulation using a carrier frequency different from the data of the keyboard 2 to drive the infrared light emitting section 5, and the infrared light emitting section 5 emits infrared light. This infrared ray emitted is applied to a receiver (not shown) having a speaker. The receiving side is the key
The received data is distinguished by the difference in frequency when transmitting data and voice data. In the case of key data, the OHP projector is operated, and in the case of voice data, the speed is changed. Demodulate to a signal to the car. The power supply 8 supplies power to the controller 6, driver 7 and signal amplifier 9.

Next, a second embodiment will be described. FIG. 3 is an external perspective view. The remote controller 10 has a keyboard 11 composed of a plurality of keys for controlling an OHP projector (not shown), and a sound collector 13 for collecting voice.
A switch 12 for setting the operation of the sound collector, and an antenna 14 for transmitting a control signal and a voice signal as radio waves to the OHP projector.

FIG. 4 is a functional block diagram. When used as a microphone, the sound collector 1 is operated when the switch 12 is operated.
An audio signal is input to the signal amplifier 15 from 3, and the amplified signal is output to the wireless module 16. The wireless module 16 converts into a radio wave based on the control signal and the voice signal, and sends out from the antenna 14. This radio wave is received by the OHP projector and the speaker controller.

When used as a remote controller,
When a desired key of the keyboard 11 (an enlargement key for enlarging and displaying a portion having display data in order to explain a part of the display contents of a certain OHP projector in detail) is depressed. The controller 18 detects the state, generates an analog signal of a specific frequency outside the voice band corresponding to the depressed key, and outputs the analog signal to the wireless module 16.
The wireless module 16 sends out an analog signal of a specific frequency corresponding to the key as a radio wave via the antenna 14, similar to the sending of a voice analog signal. The receiving side demodulates the received radio waves and sends a frequency signal in the voice band to the speaker,
In the case of a signal outside the voice band, by further detecting a specific frequency corresponding to the key, and if it is determined to be the expansion key, the part with the data currently displayed on the liquid crystal is displayed vertically and horizontally. Various operation processes such as doubling and displaying again are performed. The power supply 8 supplies power to the controller 18, the signal amplifier 15, and the wireless module 16.

[0012]

As described above, the present invention has a structure as described above. Therefore, a remote controller for remotely controlling an OHP transilluminator is provided with a sound collector for collecting a user's voice. Since it is added, the number of things to have is reduced and the work becomes easier. Incidentally, in each of the above-described embodiments, in order to transmit the control signal and the voice signal,
Although only infrared rays or radio waves are used, the two can be used at the same time.

[Brief description of drawings]

FIG. 1 is an external perspective view of a first embodiment.

FIG. 2 is an electrical block diagram of the first embodiment.

FIG. 3 is an external perspective view of a second embodiment.

FIG. 4 is an electrical block diagram of a second embodiment.

[Explanation of symbols]

 1 Remote Controller 2 Keyboard 3 Switch 4 Sound Collector 5 Infrared Light Emitting Section 6 Controller 7 Driver 8 Power Supply 9 Signal Amplifier 10 Remote Controller 11 Keyboard 12 Switch 13 Sound Collector 14 Antenna 15 Signal amplifier 16 wireless module 17 power supply 18 controller

Claims (3)

[Claims] 1. A power-on / off and display data for an OHP transposing machine.
A remote controller for instructing control such as data exchange, which is equipped with a sound collector for collecting a voice of a user's explanation announcement and expanding the voice from a speaker. A remote controller that doubles as a microphone for a transilluminator. 2. A remote controller also used as a microphone for an OHP projector according to claim 1, wherein a small microphone is built in as the sound collector. 3. A power-on / off and display data for an OHP transposing machine.
2. The OH according to claim 1, wherein an input key is arranged on a grip portion of a microphone for instructing control such as exchange of the data.
A remote controller that also functions as a microphone for a P-transmission machine.