JP4337178B2 - Receiver with display - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a receiving device with a display that includes a display for receiving various information such as reception results while receiving information transmitted by radio waves, and is particularly suitable for use in a GPS receiver that performs position measurement by GPS. The present invention relates to a receiving apparatus with a display.
[0002]
[Prior art]
Conventionally, in-vehicle navigation devices and portable GPS receivers that operate using a battery as a power source have been widely used as GPS receivers that use GPS. At times, wristwatch-type GPS receivers have come into practical use. In such a portable GPS receiver, the liquid crystal display is used to display the measured latitude / longitude and the like, and the apparatus and the liquid crystal display are arranged side by side. As a result, it is possible to prevent a reception failure from occurring due to the influence of noise caused by the operation of the liquid crystal display.
[0003]
[Problems to be solved by the invention]
However, in the portable GPS receiver, since it is necessary to arrange the antenna and the display side by side in a plane as described above, there is a limit to downsizing the device. Of course, such a problem can be solved by changing the display to a small one, but in that case, a new problem that the amount of information that can be displayed at one time is reduced occurs.
[0004]
The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a display-equipped receiving apparatus that can further reduce the size of the apparatus while ensuring the amount of information that can be displayed at one time. And
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention has the following configuration.
[0007]
According to the first aspect of the present invention , the lid body can be connected to the apparatus main body so as to be openable and closable in a closed state in which the lid body is vertically overlapped and an open state in which the lid body is arranged in a plane. In addition to driving the hands arranged on the surface of the lid, not only can the time be indicated, but also when the radio wave is received by the antenna unit, the operation of the hands is stopped to reduce the noise generated by the driving of the hands. Good reception without being affected. Furthermore, the reception status of the radio wave by the antenna unit can be acquired, and the pointer can be stopped at the position where the acquired reception status is determined to be good, so that the radio wave can always be reliably received.
[0008]
According to a second aspect of the present invention, since the other display unit for displaying information is provided on the back surface of the lid that faces the apparatus main body in the closed state , the lid is in the closed state. Even if the external dimensions of the device are reduced, the display area of information when the lid is opened can be easily secured.
[0010]
In addition, according to the invention of claim 3 , it is possible to receive radio waves without much influence of the pointer.
[0012]
According to the fourth aspect of the present invention , it is possible to know that the measurement of the current position is completed by notifying by the notifying means without opening the lid.
According to the invention of claim 5, it is possible to satisfactorily receive radio waves without much influence of the pointer.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a GPS receiver 1 according to the present invention.
[0014]
The GPS receiver 1 is formed by a case 2 having a rectangular outer shape, and a display unit 3 and an operation unit 4 are provided on the upper surface of the case 2. The display unit 3 includes a first display area 3a that occupies the entire left half of the surface of the case 2 and a second area that occupies the entire area excluding the operation part 4 of the right half. A plurality of 5 are provided. Further, as shown in FIG. 2, the first and second display areas 3a and 3b are disposed at the upper part in the case 2 and covered with a windshield glass (not shown) and the second LCD panel 6. And the LCD panel 7. The first LCD panel 6 is a transmissive type that allows visible light to pass, and on the back side thereof, a flat plate-like GPS antenna 8 that receives radio waves in the L1 band from GPS satellites is housed. The radio wave is received through the LCD panel 6. Further, on the back side of the second LCD panel 7, a main module 11 described later of the GPS receiver 1, a module body 9 made of various electronic components constituting the GPS module 12, a battery, and the like are accommodated.
[0015]
FIG. 3 is a block diagram illustrating an electrical configuration of the GPS receiver 1, and the GPS receiver 1 includes a main module 11 and a GPS module 12. The GPS module 12 is a data register necessary for decoding positioning information such as ephemeris data and almanac data from the reception unit 13 constituted by the GPS antenna 8, RF, A / D, etc., and radio waves received by the reception unit 13. , A counter, a decoder, and a signal processing unit 14 including a CPU for controlling them. The signal processing unit 14 includes a read-only mask ROM 15 that stores the CPU program, a readable / writable SRAM 16 that is used as a register for calculation of the CPU, and stores various data in association with position measurement work. Is connected. The GPS module 12 is connected to the CPU 17 of the main module 11 via the input data line a and the output data line b, and sends various information such as position measurement results to the CPU 17.
[0016]
The CPU 17 controls each part of the GPS receiver 1 using the RAM 19 as a working memory in accordance with a control program stored in the ROM 18. The ROM 18 stores various data together with the control program. Further, a clock unit 20, a switch input unit 21, a first display unit 22, and a second display unit 23 are connected to the CPU 17. The clock unit 20 is configured by a crystal oscillator or the like for counting the current time and sending it to the CPU 17, and the switch input unit 21 is configured by the plurality of switches 5 used for the operation of the GPS receiver 1. . The first display unit 22 and the second display unit 23 are respectively composed of the first LCD panel 6 and the second LCD panel 7 described above and their drive circuits, and each of them includes an address line c and data. The line d is connected to the CPU 17. Further, a display off line for stopping the display operation of the first LCD panel 6 by the drive circuit as necessary is provided between the CPU 17 and the address line c and data line d on the first display unit 22 side. e is provided.
[0017]
Next, in the GPS receiver 1 having the above configuration, an operation related to the position measurement process executed by the CPU 17 will be described with reference to the flowchart of FIG. That is, when a predetermined measurement operation is performed by the user, the CPU 17 first stops the display operation of the first LCD panel 6 on the first display unit 22 (step SA1) and then starts the measurement process (step SA2). The state is maintained until the measurement is completed (NO in step SA3). When the measurement is completed (YES in step SA3), the display operation of the first LCD panel 6 in the first display unit 22 is resumed (step SA4), the measurement result is displayed, and the position measurement is ended. If the radio wave reception status is poor and measurement is not possible even after a predetermined time has elapsed, the measurement is terminated at that time and the display operation of the first LCD panel 6 is resumed. During this operation, when a measurement operation is performed by the user, for example, as shown in FIG. 5A, a simple map showing a route set in advance by the user in the first display area 3a. If it is displayed and the date and time are displayed in the second display area 3b, the date and time are once displayed in the second display area 3b as shown in FIG. When only the display is displayed and the position can be measured, as shown in FIG. 5C, a simple map indicating the current position and the latitude / longitude of the current location are displayed in the first display area 3a. It will be.
[0018]
Here, at the time of the above measurement operation, when the radio wave is received by the GPS antenna 8, the display operation of the first LCD panel 6 is stopped. Even with the configuration of the first and second display areas 3a and 3b), the GPS antenna 8 can receive radio waves transmitted through the first LCD panel 6 without being affected by electrical noise. For this reason, even when the external dimensions of the case 2 are reduced, a sufficient area can be secured in the display unit 3. Therefore, it is possible to reduce the size of the apparatus as compared with the conventional apparatus while securing the amount of information that can be displayed at one time. The second display unit 23 (second LCD panel 7) described above may be eliminated, and various types of information may be displayed using only the first display unit 22 (first LCD panel 7). Even in such a case, the apparatus can be downsized as compared with the conventional apparatus while ensuring the amount of information that can be displayed at one time.
[0019]
Further, in the present embodiment, by having the second display unit 23 (second LCD panel 7), information (date and time in the above example) can be always provided to the user, The amount of information that can be displayed at the same time is convenient. In addition, since the first and second display areas 3a and 3b are individually configured by the first and second LCD panels 6 and 7, general-purpose devices can be used for them, and the GPS receiver 1 can be reduced. Can be provided at a cost. Note that the display unit 3 may be configured by a transmissive LCD panel capable of driving only a desired display area as required.
[0020]
(Second Embodiment)
FIG. 6 is a plan view showing a GPS receiver 31 according to the second embodiment of the present invention, and FIG. 7 is a schematic sectional view corresponding thereto. The GPS receiver 31 is a wristwatch type, has a substantially square planar shape and is provided with a main body 33 provided with belts 32, 32, and a lid 34 connected to the right side thereof through a hinge so as to be opened and closed. It is composed of The main body 33 is provided with a plurality of operation switches 35 at the attachment portion of one belt 32. As shown in FIG. 7, a first LCD panel 36 is disposed inside the main body 33 on the front surface side of the main body 33, and a main module 11 and a GPS module described later of the GPS receiver 31 are disposed on the rear surface side thereof. A module body 37 made of various electronic components constituting the battery 12, a battery, and the like are accommodated. Inside the lid 34, a second LCD panel 38 is accommodated on the back side facing the main body 33 in the closed state shown in FIG. 6A and FIG. An antenna / analog needle portion 39 is accommodated on the surface side. The antenna / analog hand portion 39 is composed of a flat GPS antenna 40, a movement for driving the hour hand 41 and the minute hand 42, and the hour hand 41 and the minute hand 42 indicating the time using the surface 40a of the GPS antenna 40 as a dial. . The movement has an actuator for causing the hour hand 41 and the minute hand 42 not only to perform a normal time display operation but also to perform a predetermined operation which will be described later. It is placed in contact with the side. Further, the drive shafts of the hour hand 41 and the minute hand 42 extending from the movement penetrate the central portion of the GPS antenna 40.
[0021]
FIG. 8 is a block diagram showing an electrical configuration of the GPS receiver 31. The GPS receiver 31 includes a main module 11 and a GPS module 12. Hereinafter, the parts different from those shown in FIG. 3 in the first embodiment will be described. In the present embodiment, the aforementioned actuator 43 that constitutes the aforementioned movement is connected to the timepiece unit 20. In addition, the CPU 17 includes a notification unit 44 including a circuit for generating an alarm sound and a sound generation device, the first display unit 45 including the first LCD panel 36 and its driving circuit, and the second LCD panel. A second display unit 46 including 38 and its drive circuit is connected.
[0022]
Next, the operation of the position measurement process executed by the CPU 17 in the GPS receiver 31 having the above configuration will be described with reference to the flowchart of FIG. That is, the CPU 17 starts the operation when a predetermined measurement operation is performed by the user with the lid 34 in the closed state shown in FIGS. 6A and 7A. First, the hour hand 41 and the minute hand 42 are started. Are driven to the same position, for example, a position indicating 12 o'clock (step SB1). Next, it is determined based on the radio wave reception status whether or not there is any interference with the hour hand 41 and the minute hand 42 (step SB2). For example, the GPS module 12 side captures satellites, and if the number of satellites that can be captured is 5 or more, “no reception interference”, and if it is 4 or less, “reception interference exists”. This is performed in accordance with a predetermined criterion. Then, while the determination result of step SB2 is NO and it is determined that there is reception interference, both the hour hand 41 and the minute hand 42 are moved by a predetermined amount, for example, every 5 minutes (step SB3), and then again. Determine if there is no interference with reception.
[0023]
If it is determined that there is no reception interference while repeating the above process (YES in step SB2), the measurement process is started (step SB4), and the state is maintained until the measurement is completed (NO in step SB5). . Thereafter, when the measurement is completed (YES in step SB5), an alarm sound is generated (step SB6), and the measurement results and the like are displayed on the first and second LCD panels 36 and 38 (step SB7). Normal operation of the minute hand 42 is resumed (step SB8), and the process is terminated. Therefore, the user can know the measurement result or the like by opening the lid 34 shown in FIGS. 6B and 7B when the alarm sound is generated. In the above-described processing, even if the hour hand 41 and the minute hand 42 are rotated once in the processing in the above-described step SB2 and step SB3, for example, five or more satellites cannot be captured and a state of “no reception interference” is obtained. If not, the hour hand 41 and the minute hand 42 are moved to a position where the number of captured satellites is the largest, that is, a position where the reception state is the best.
[0024]
In the present embodiment described above, the measurement result can be obtained by opening the lid 34 when the position measurement is completed, and the lid 34 is provided in the first and first LCD panels 36. A display area substantially the same as that of the upper surface of the apparatus when the is closed can be secured. Further, by performing position measurement while the lid 34 is in the closed state, radio waves can be received without being affected by electrical noise from the first and second LCD panels 36 and 38. Therefore, it is possible to reduce the size of the apparatus as compared with the conventional apparatus while securing the amount of information that can be displayed at one time. Further, since the second LCD panel 38 is provided on the back side of the lid 34, the amount of information that can be displayed at one time even if the external dimensions of the main body 33, that is, the display area of the first LCD panel 36 is reduced. It is easy to ensure, and this can also reduce the size of the apparatus. In addition, since the user can accurately know the opening timing of the lid 34 by an alarm sound, the measurement operation is not interrupted by opening the lid 34 during position measurement, and always in the shortest time. The current position can be measured.
[0025]
Further, when the lid 34 is in the closed state, it can be used as a normal analog timepiece, which is convenient. In addition, when the position is measured, the operation of the hour hand 41 and the minute hand 42 is stopped, and the radio wave is reliably received at all times because it is moved to a position where the reception condition is the best so as not to cause reception interference. Can be maintained. In this regard, if at least the operation of the hour hand 41 and the minute hand 42 is stopped at the time of position measurement, it is possible to receive radio waves without much influence of the pointer, and both stop positions are the same position. If so, a more remarkable effect can be obtained.
[0026]
Further, in the present embodiment, the second LCD panel 38 is provided on the back side of the lid 34. However, the GPS antenna is provided on the lid 34 without providing the second LCD panel 38. With this configuration, it is possible to reduce the size of the apparatus as compared with the conventional one while securing the amount of information that can be displayed at one time. Next, an example is shown.
[0027]
(Third embodiment)
FIG. 10 is a plan view showing a GPS receiver 51 according to the third embodiment of the present invention, and FIG. 11 is a schematic sectional view corresponding thereto. The GPS receiver 51 is also composed of a main body 33 and a lid 34 connected to the main body 33 so as to be freely opened and closed. A flat GPS antenna 52 is accommodated inside the lid 34 on the back side facing the main body 33 in the closed state (the state shown in FIGS. 10A and 11A) overlapping the main body 33. The dial 53, the hour hand 41 and the minute hand 42, and an analog hand portion 54 including a movement (not shown) are accommodated on the surface side. Further, since the configuration of the main body 33 other than this is the same as that shown in the second embodiment, the same reference numerals are given and the description thereof is omitted. As for the electrical configuration of the GPS receiver 51, the second display unit 46 is eliminated from the configuration shown in FIG. 8, and the step motor constituting the above-described movement is replaced with the actuator 43 by the timepiece unit 20. It is the structure connected to.
[0028]
In such a configuration, when a predetermined measurement operation is performed with the lid 34 in the open state shown in FIGS. 10B and 11B, information such as measurement results is displayed on the LCD panel 36. Moreover, even if position measurement is performed with the date, time, etc. displayed on the LCD panel 36, radio waves can be satisfactorily received by the GPS antenna 52 without being affected by electrical noise generated there. Therefore, also in the present embodiment, the LCD panel 36 can ensure a display area almost the same as that of the upper surface of the apparatus regardless of the presence of the GPS antenna 52, while ensuring the amount of information that can be displayed at one time. The size of the device can be reduced as compared with the above.
[0029]
In the present embodiment, if the size of the movement described above is an area that does not cover the GPS antenna 52, the GPS antenna 52 can receive radio waves even when the lid 34 is closed. In that case, the movement for driving the hour hand 41 and the minute hand 42 is the same as that of the second embodiment, and the operation of the hour hand 41 and the minute hand 42 at the time of position measurement is the same as that of the second embodiment described above. If the control is performed, it is possible to always reliably receive radio waves.
[0030]
【The invention's effect】
As described above, according to the display-equipped receiving apparatus of the present invention , the lid can be connected to the apparatus main body so as to be openable and closable in a closed state in which the lid is overlapped vertically and an open state in which the lid is arranged in a plane.
In addition to driving the hands arranged on the surface of the lid, not only can the time be indicated, but also when the radio wave is received by the antenna unit, the operation of the hands is stopped to reduce the noise generated by the driving of the hands. Good reception without being affected.
Furthermore, the reception status of the radio wave by the antenna unit can be acquired, and the pointer can be stopped at the position where the acquired reception status is determined to be good, so that the radio wave can always be reliably received.
[0031]
According to a second aspect of the present invention, since the other display unit for displaying information is provided on the back surface of the lid that faces the apparatus main body in the closed state , the lid is in the closed state. Even if the external dimensions of the device are reduced, the display area of information when the lid is in the open state can be easily secured, so that a greater effect can be obtained.
[0032]
In addition, according to the invention of claim 3, it is possible to receive radio waves without much influence of the pointer.
According to the fourth aspect of the present invention, it is possible to know that the measurement of the current position is completed by notifying by the notifying means without opening the lid .
According to the invention of claim 5, it is possible to satisfactorily receive radio waves without much influence of the pointer.
[Brief description of the drawings]
FIG. 1 is a schematic plan view of a GPS receiver showing a first embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view taken along line XX of FIG.
FIG. 3 is a block diagram showing an electrical configuration in the embodiment.
FIG. 4 is a flowchart showing an operation related to position measurement processing by the CPU in the embodiment;
FIG. 5 is a transition diagram illustrating a display operation in the display unit at the time of position measurement.
6A and 6B are plan views of a GPS receiver showing a second embodiment of the present invention, where FIG. 6A is a non-measurement state with the lid closed, and FIG. 6B is a measurement with the lid open. It is a figure which shows the state of time.
7 is a schematic cross-sectional view corresponding to FIGS. 6A and 6B, respectively. FIG.
FIG. 8 is a block diagram showing an electrical configuration in the embodiment.
FIG. 9 is a flowchart showing an operation related to position measurement processing by the CPU according to the embodiment;
FIGS. 10A and 10B are plan views of a GPS receiver according to a third embodiment of the present invention, where FIG. 10A is a non-measurement state with the lid closed, and FIG. 10B is a measurement with the lid open. It is a figure which shows the state of time.
11 is a schematic cross-sectional view corresponding to FIGS. 9A and 9B, respectively. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 GPS receiver 3 Display part 3a 1st display area 3b 2nd display area 6 1st LCD panel 7 2nd LCD panel 8 GPS antenna 17 CPU
20 Clock unit 31 GPS receiver 33 Main body 34 Lid 36 First LCD panel 38 Second LCD panel 39 Antenna / analog needle 40 GPS antenna 41 Hour hand 42 Minute hand 44 Notification unit 51 GPS receiver 52 GPS antenna

Claims (5)

The device body;
A lid body that is openably and closably connected to a closed state that overlaps the apparatus main body vertically and an open state that is arranged in a plane;
An antenna for receiving radio waves provided on the lid,
A clock means for driving the pointer disposed on the surface of the lid and indicating the time;
First control means for stopping the operation of the hands by the timepiece means upon reception of radio waves by the antenna unit;
Obtaining means for obtaining a reception status of the radio wave by the antenna unit;
Second control means for stopping the pointer at a position determined that the reception status acquired by the acquisition means is good,
A receiving device with a display, wherein a display unit for displaying information is provided on a surface portion of the receiving device main body facing the lid in the closed state . Wherein the back surface of the lid facing the device body in a closed state, the display with the receiving apparatus according to claim 1, wherein the another display unit for displaying information is provided. The pointer is a plural, the second control means, the antenna unit with display receiving apparatus according to claim 1, wherein the stopping guidance of the plurality of the time of reception of radio waves at the same position by . The antenna unit is for receiving radio waves including positioning information transmitted from a satellite, and further includes positioning means for measuring the current position based on positioning information included in the radio waves received by the antenna unit, and the positioning unit. display with the receiving apparatus according to claim 1, characterized in that a notifying means for measuring operation of the current position is to notify the completion. An apparatus body having a display unit;
An antenna for receiving radio waves,
Clock means for driving a pointer disposed close to the display unit and indicating a time;
First control means for stopping the operation of the hands by the timepiece means upon reception of radio waves by the antenna unit;
Obtaining means for obtaining a reception status of the radio wave by the antenna unit;
Second control means for stopping the pointer at a position where the reception status acquired by the acquisition means is determined to be good;
A receiving apparatus with a display, comprising:

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