JPS637038A - Data source - Google Patents

Abstract

PURPOSE:To reduce the power consumption of a power source battery, by providing a liquid crystal shutter part which transmits, or shuts off light from a prescribed light source, and is capable of performing the transmission of an optical signal formed against a prescribed equipment, and a liquid crystal shutter control part capable of controlling the liquid crystal shutter part corresponding to a prescribed data. CONSTITUTION:A data source 1 is removed from a main body equipment 9, and inputs the prescribed data by operating input keys 3a... at an input operation part 3 at a prescribed place. The data source 1 is loaded at a loading/ unloading part 10. The above loading is performed so that the light from a light source part 11 arrives at a photoelectric transducer part 12. The transfer of the data is performed by turning on, or off, liquid crystal shutters 5a... corresponding to the data of a liquid crystal shutter part 5, from h data control circuit part 7, through a liquid crystal shutter driving circuit part 8. At the time of turning on the liquid crystal shutter 5a, the liquid crystal shutter 5a transmits the light, and at the time of turning it off, it shuts off the light. Thus, the light emitted from the light source part 11 is detected at the photoelectric transducer part 12, then it is converted to an electrical signal.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data transmitting device that can convert a data signal for control into an optical signal and transmit the optical signal to a controlled device.

[Prior art]

Conventionally, in addition to the configuration in which data for operating and controlling equipment such as televisions, videos, or washing machines (hereinafter referred to as the main unit) is input directly into the main unit, there is also a handy type that can indirectly control and operate the main unit. There is known a configuration in which a data transmitting device (hereinafter referred to as a child device) is detachably attached to the main body.

The handset described above is provided with an input key so that an operator can input data for controlling the main body. This type of handset can be removed from the main body and input data at any location, and the data input to the handset can be saved. The child device into which data has been input is attached to the main body, and the data stored in the child device is transferred to the main body at the attachment portion.

As a method for transferring data, there is a method in which the handset and the main body are brought into direct contact using an input/output connector or the like, and the data is transferred by electrical signals. However, in this method, the handset is frequently attached and detached, which causes inconvenience in the attaching and detaching operation.

Additionally, non-contact data transfer systems using media such as light, magnetism, or radio waves are also known. However,
In data transfer methods that use magnetism or radio waves other than light as described above, the main unit uses commercial power as a power source, while handheld handsets have an internal battery that is used as a power source for the handset. Therefore, it is necessary to consider miniaturizing the handset, but there is a problem in that it is not easy to make the handset smaller.

Therefore, in the past, a non-contact optical data transfer method has generally been adopted. In this case, the slave unit is configured to obtain an optical signal using a light emitting element. However, the light emitting element used in the data transmitting device that constitutes the above-mentioned slave device consumes a considerable amount of power, so it has the disadvantage that the life of the battery as a power source is shortened.

[Purpose of the invention]

The present invention has been made in consideration of the above-mentioned conventional problems, and the present invention has been made in consideration of the power consumption required for converting a data signal for controlling a controlled device into an optical signal and transmitting the optical signal to the controlled device. The object of the present invention is to provide a data transmitting device that requires very little data.

[Structure of the invention]

In order to achieve the above object, the data transmitting device according to the present invention includes a liquid crystal shutter section that can transmit or block light from a predetermined light source and transmit a formed optical signal to a predetermined device; The present invention is characterized in that it includes a liquid crystal shutter control section that can control the liquid crystal shutter section according to predetermined data, and is configured so that the amount of power consumed in this optical signal transmitting device is extremely small.

〔Example〕

An embodiment of the present invention will be described below based on FIGS. 1 and 2.

As shown in FIG. 1, the data transmission value W1 has a flat rectangular parallelepiped shape. Housing 2 of the data transmitting device 1
, an input operation section 3, an input data monitor section 4, and a liquid crystal shutter section 5 are arranged side by side in this order on its upper surface.

The input operation section 3 is provided with a large number of input keys 3a, and the liquid crystal shutter section 5 is provided with a plurality of liquid crystal shutters 5a, respectively, at predetermined positions. As shown in FIG. 2, this data transmission value W1 includes an input control circuit section 6 connected to the input operation section 3.
, a data control circuit section 7, and a liquid crystal shutter drive circuit section 8 are connected in this order. Here, the data control circuit section 7 and the liquid crystal shutter drive circuit section 8 constitute a liquid crystal shutter control section 15.

The liquid crystal shutter drive circuit section 8 is connected to the input data monitor section 4 and the liquid crystal shutter section 5.

The data transmitting device I is configured to be attached to and detached from the attachment/detachment unit IO of the main device 9.

A light source section 11 is installed above the detachable section 10 of the main device 9, and light emitted from the light source section 11 is transmitted to the detachable section 10.
The light is received by the photoelectric conversion element section 12 below 0. The photoelectric conversion element section 12 is connected to a detection amplification circuit section 13, and this detection amplification circuit section 13 is connected to a control circuit section 14.

In the above configuration, use 7101 of data transmitting device 1
will be explained below.

The data transmitting device 1 is removed from the main device 9, and input keys 3a of the input operation section 3 are operated at a predetermined location to input predetermined data. At this time, the input data is displayed on the input data monitor section 4. When data input is completed, the data transmitting device 1 is attached to the attachment/detachment section 10. This mounting is done so that the light emitted from the light source section 11 reaches the photoelectric conversion element section 12 via the liquid crystal shutter section 5 of the data transmitting device 1 . After attachment, transfer of data input to the data transmitting device 1 is started automatically or by performing a predetermined operation.

This data transfer is performed from the data control circuit section 7 via the liquid crystal shutter drive circuit section 8 by turning on or off the liquid crystal shutters 5a corresponding to the data in the liquid crystal shutter section 5. When the liquid crystal shutter 5a is turned on, the liquid crystal shutter 5a transmits light, and when it is turned off, the liquid crystal shutter 5a blocks light. In this way, the light emitted from the light source section 11 is transmitted or blocked by the liquid crystal shutter section 5 depending on the data, and is detected by the photoelectric conversion element section 12.
converted into an electrical signal. The converted electrical signal is sent to the control circuit section 14 via the detection amplification circuit section 13. This completes the transfer of data from the data transmission value W1 to the main device 9.

As mentioned above, since data transmission is performed using a transmission blocking mechanism that uses a liquid crystal element with low power consumption to block light from a predetermined light source, the power consumption of the power supply battery used in the data transmission device 1 is Less is required, resulting in a longer battery life. Note that the above-mentioned light source may not be provided in the main device as in this embodiment, but may be one that simply utilizes external light as a light source, for example.

〔Effect of the invention〕

As described above, the optical signal transmitting device of the present invention is provided with a light source that emits light all the time, and is equipped with a liquid crystal shutter section that can transmit or block light from the light source and transmit the formed optical signal. The configuration is as follows.

As a result, optical signals can be transmitted using the liquid crystal shutter section made of liquid crystal elements that consume very little power, so the power consumption of the power supply battery used in the optical signal transmitter can be reduced, and as a result, the battery It has the effect of extending the lifespan.

[Brief explanation of the drawing]

1 and 2 show one embodiment of the present invention, in which FIG. 1 is a perspective view showing a data transmitting device, and FIG. 2 is a schematic configuration showing an optical signal transmitting device and main device. It is an explanatory diagram. 1 is a data transmitter, 5 is a liquid crystal shutter section, 11 is a light source section (light source), and J5 is a liquid crystal shutter control section.

Claims (1)

[Claims] 1. A liquid crystal shutter section that can transmit or block light from a predetermined light source and transmit the formed optical signal to a predetermined device, and a liquid crystal shutter control that can control this liquid crystal shutter section according to predetermined data. A data transmitting device comprising: