JPH05207105A - Cordless telephone set - Google Patents

Abstract

PURPOSE:To prevent the deviation of the starting times of the incoming sound ringing between a master machine and a slave machine. CONSTITUTION:The cordless telephone set is one which shortens the time deviation between the incoming sound ringing of a slave machine by delaying the incoming sound ringing of a master machine at the time of an incoming. The master machine 1 of this telephone set is provided with a timer means c11 timing a preliminarily fixed setting time from when the master machine 1 is started at the time of the incoming to when the machine 1 starts the incoming sound ringing, and a signal processing part 10 setting the incoming sound from an incoming sound generation circuit 108 to ring when this timer means c11 times the setting times.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to improvements in cordless telephones.

[0002]

2. Description of the Related Art This type of cordless telephone is widely used in homes and the like because it is compact and can be placed anywhere without laying around the telephone line. 16 and 17 are block diagrams showing main components of a base unit and a handset of a conventional cordless telephone. In the figures, 101 is a signal processing unit of the base unit including a CPU, and 102 is an antenna. 102a
And a wireless transmission / reception unit of the master unit for transmitting and receiving radio signals to / from the wireless slave unit 200, a line control unit 103 for controlling connection / disconnection of a line with a public telephone line network,
Reference numeral 104 is a display unit of the master unit, 105 is a key operation unit of the master unit configured by a push-button dial, 106 is a timer means a which is activated by an incoming call and measures a transmission time of a control signal for calling the slave unit from the master unit, 107 is electrical signal to voice,
Alternatively, a call circuit section of the master unit for converting voice into an electric signal, 108 is a ring tone generation circuit of the master unit, 201 is a signal processing section of a slave unit including a CPU, and 202 is the antenna 2
02a, a wireless transmitter / receiver unit of a slave unit for transmitting and receiving radio signals to and from the master unit 100, 203 a display unit of the slave unit, 204 a key operation unit of the slave unit constituted by a push button dial, 205 Is a timer means b for measuring an intermittent reception cycle for the slave unit to receive a control signal from the master unit 100, 206 is a communication circuit section of the slave unit, and 207 is a ring tone generation circuit of the slave unit.

The operation of such a cordless telephone at the time of incoming call will be described with reference to the time charts (U) to (Y) of FIG. The incoming call is immediately received and a ring tone is output from the ring tone generation circuit (V), and at the same time, the timer means a106 is activated to transmit a control signal for calling the slave unit from the wireless transmission / reception unit 102 for a certain transmission time (W). ). On the other hand, regardless of the above operation of the parent device 100, the child device 200 intermittently receives the above control signal in the cycle Ti shorter than the transmission time of the control signal in order to suppress the battery consumption (X). When the control signal is received, the ring tone of the handset starts ringing (Y). FIG. 18 shows the appearance of such a cordless telephone and the signal communication status. However, (Y)
As shown in, the time lag occurs, and accordingly, the ringing tones of the master unit and the slave unit also lag by the same amount of time, causing the user to feel uncomfortable.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances of the conventional cordless telephone,
Even if the base unit receives an incoming call, the ring tone of the base unit does not sound immediately,
Delay the start of ringing sound of the base unit to reduce the time difference between the ringing sound of the base unit and the slave unit, or proceed further to correct the time difference between the ringing sound of the base unit and the handset unit. The purpose is to provide a lost cordless telephone.

[0005]

The cordless telephone of the first invention proposed to achieve the above object is activated at the time of an incoming call and a predetermined set time until the master unit starts ringing a ring tone. The master unit is provided with a timer unit for measuring the time and a signal processing unit for causing the ring tone generation circuit to ring the ring tone when the timer unit counts the set time (claim 1), various methods of setting the set time of the timer means are possible. That is, in the cordless telephone proposed in claim 2, the timer means is a variable timer means capable of manually changing the set time within a predetermined range. The cordless telephone proposed in Item 3 further includes a random number generation circuit that generates a random number when an incoming call is received and inputs the random number to the timer means, and the timer means is within a predetermined range according to the input random number, The variable timer means is configured to be activated when the set time is changed and the setting is changed.

In the cordless telephone according to the second aspect of the invention, a timer means for repeating a time count equal to the intermittent reception cycle of the handset at the same time as the end of the call of the handset, and after the arrival of the call, the ring tone generation circuit receives the call at the same time. Since the master unit is provided with the signal processing unit for starting the ringing of the sound, the master unit and the slave unit simultaneously start ringing the ringing tone (claim 4). In this configuration, when there is no call from the slave unit for a long period of time, it is conceivable that a gap may occur between the timing of the timer means of the master unit and the intermittent reception cycle of the slave unit. In the cordless telephone proposed in 1), the deviation between the timing of the timer means of the master unit and the intermittent reception cycle of the slave unit is corrected on the master unit side by the periodic signal from the slave unit. ..

In the cordless telephone according to the third aspect of the invention, the slave unit receives the control signal from the master unit for notifying the incoming call by the intermittent reception and activates the ring tone from the ring tone generation circuit, and at the same time, the master unit. A signal processing unit of the slave unit that outputs a reply signal to the master unit, and a signal processing of the master unit that causes the ring tone generation circuit to ring the ring tone at the same time that the parent unit receives the reply signal (Claim 6).
With this configuration, if the power switch of the cordless handset is turned off, or if the cordless handset is placed outside the reach of the control signal,
Since the base unit is also unable to ring the ring tone, the cordless telephone proposed in claim 7 is provided with a timer means that is activated at the time of an incoming call to measure a predetermined set time in preparation for this. When the set time is measured without receiving the reply signal, the ring tone of the master unit is started to ring.

[0008]

According to the cordless telephone of the present invention proposed in claim 1, when the incoming call is received, the base unit does not start ringing the ringing tone, but when the timer means counts a predetermined set time, the ringing tone is not heard for the first time. Since it rings, it is possible to reduce the time lag between the ringing sound of the master unit and that of the slave unit. Further, the cordless telephone proposed in claim 2 is convenient because the set time of the timer means can be changed manually. Further, in the cordless telephone proposed in claim 3, a random number is generated from a random number generation circuit when an incoming call is received, and the set time of the timer means is randomly changed according to the random number. It is possible to reduce the time lag between ringing tones with.

According to the cordless telephone of the present invention proposed in claim 4, the base unit is provided with timer means for repeating the timekeeping equal to the intermittent reception cycle of the handset, and after the call is received, the base unit is synchronized with the timekeeping. Since the ringing tone is started, the master unit and the slave unit can start ringing at the same time. Further, in the cordless telephone proposed in claim 5, a deviation occurring between the time measurement of the timer means of the master unit and the intermittent reception cycle of the slave unit is corrected on the master unit side by the periodic signal from the slave unit. Therefore, the ring tone of the master unit and the slave unit can always be set to be the same.

According to the cordless telephone of the present invention proposed in claim 6, when the incoming call is received, the master does not start ringing a ring tone, and when the slave receives a control signal from the master for notifying the incoming call, the incoming call is received. At the same time that the sound is emitted, a reply signal is output to the master unit, and the master unit sounds the ring tone for the first time upon receiving this reply signal, so the master unit and the slave unit can start ringing at the same time. I can. In addition, claim 7
In the cordless telephone proposed in, even if the above reply signal is not received, if a preset time has elapsed,
Since the ring tone of the master unit starts, even if the power switch of the cordless handset is turned off or the cordless handset is placed outside the reach of the above control signals, the ring tone of the master unit will ring. Can be done.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration example of a base unit 1 of the cordless telephone according to the present invention as set forth in claim 1.
The same parts as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted. Further, since the configuration of the slave unit is the same as that of the conventional example, refer to the configuration example diagram of the conventional example and FIG. In the figure, numeral 11 is a timer means c that is activated at the time of incoming call and measures a predetermined set time until the base unit 1 starts ringing a ring tone. This is a signal processing unit that causes the ring tone generation circuit 108 to ring the ring tone when the time is counted.

The operation of such a cordless telephone when receiving an incoming call is shown in the time charts (A), (B) and (D) of FIG.
Describing with reference to (F), when there is a call from the public line (A), the master unit 1 receives the call immediately, but the timer means c11 and a106 are activated without sounding the ring tone, and A control signal for calling the machine 200 is started to be transmitted from the wireless transmission / reception unit 102 for a fixed transmission time measured by the timer means a106 (D), and the timer means c1.
When 1 counts the preset time Tf, the ring tone is sounded for the first time (B). On the other hand, the child device 200 is the parent device 1
Irrespective of the above operation, in order to suppress battery consumption, the above control signal is intermittently received in a cycle Ti shorter than the transmission time of the control signal (E), and the ring tone sounds when the control signal is received. Is to start (F). FIG. 13 shows an appearance of such a cordless telephone and a signal communication state.

FIG. 2 shows an example of the configuration of the base unit 2 of the cordless telephone according to the present invention as defined in claim 2.
The main difference from the master unit 1 is the variable timer unit 21 in which the timer means c11 can manually change the set time within a predetermined range (<intermittent reception cycle Ti of the slave unit). I am here. Further, since the configuration of the slave unit is similar to that of the conventional example, a configuration example diagram of the conventional example,
See 7.

The operation of such a cordless telephone at the time of an incoming call is the same as that of the cordless telephone according to the above-mentioned claim 1, but the time Tv from the incoming call until the base unit 2 sounds the ring tone.
Can be freely changed by operating the volume or the like of the variable timer means 21 (time chart (C) in FIG. 4).

FIG. 3 shows an example of the configuration of the master unit 3 of the cordless telephone according to the present invention as defined in claim 3. The difference from the master device 1 in claim 1 is that instead of the timer means c11,
When the random number generating circuit 32 and the variable timer means 31 are added, the random number generating circuit 32 generates a random number upon incoming and inputs it to the timer means 31, and the variable timer means 31 is predetermined according to the input random number. Within the range (<intermittent reception cycle Ti of slave unit), the set time is changed, and the setting is started at the same time when the setting change is completed. Further, since the configuration of the slave unit is the same as that of the conventional example, refer to the configuration example diagram of the conventional example and FIG.

The operation of such a cordless telephone at the time of an incoming call is the same as that of the cordless telephone of the above-mentioned claim 1, but the time Tv from the incoming call until the master unit sounds the ring tone.
However, according to the random number generated by the random number generation circuit 32 at the time of the incoming call, the variable timer means 31 randomly changes each time (time chart (C) in FIG. 4).

FIG. 5 and FIG. 6 show examples of the configurations of the master unit 4 and the slave unit 5 of the cordless telephone set according to the present invention as defined in claim 4. The same parts as those in the conventional example are designated by the same reference numerals. And the description is omitted. In the figure, reference numeral 41 is a timer means d, 40 of the master unit that repeats the time measurement equal to the intermittent reception cycle of the slave unit 5 at the same time when the call of the slave unit 5 is finished. The signal processing unit of the master unit that starts ringing of the ring tone in the ring tone generation circuit, and 50 is a signal processing unit of the slave unit that is configured by a CPU or the like and that starts intermittent reception at the same time as the end of the call.

The operation of such a cordless telephone upon receipt of an incoming call is shown in the time charts (G) to (I) and (K) of FIG.
Describing with reference to (M), when the handset 5 finishes the call (G) and simultaneously starts intermittent reception (I), the base unit 4 also detects the end of the call by the line control unit 103, The timer means d41 is activated to repeat the time count equal to the intermittent reception cycle of the slave unit 5 (H). In this state, if there is a call from the public line (G), the base unit 4 receives the call immediately,
Immediately without making a ringing tone, a control signal for calling the handset 5 starts to be transmitted from the wireless transmission / reception unit 102 for a fixed transmission time measured by the timer means a106 (K), and the reception of the timer means d41. The ringing of the ringing tone is started at the later time (L). On the other hand, the handset also receives the above control signal and starts ringing a ring tone (M).
However, since the repeating cycle of the timer means d41 for measuring time is equal to the intermittent reception cycle, the ringing tones of the master unit and the slave unit start at the same time. FIG. 13 shows an appearance of such a cordless telephone and a signal communication state.

FIG. 7 and FIG. 8 show examples of the configurations of the master unit 6 and the slave unit 7 of the cordless telephone set according to the present invention as defined in claim 5, which differs from the cordless telephone set of claim 4 in that The timer means e71 of the device 7 is added, and the signal processing units 40 and 50 of the parent device 6 and the child device 7 are signal processing units 60 and 70, respectively.
Has been replaced. The timer means e71 clocks a fixed cycle in synchronization with the intermittent reception cycle, and the signal processing unit 70 of the slave unit 7 is composed of a CPU or the like. When the timer means e71 clocks a fixed cycle, the wireless transmission / reception unit 202 sends a timer. It sends a correction signal. When the wireless transceiver 102 receives the timer correction signal, the signal processor 60 of the parent device 6 immediately outputs a set signal to the timer means d41.

The operation of such a cordless telephone at the time of an incoming call is substantially the same as that of the cordless telephone of the above-mentioned claim 4, but the timer means e71 of the handset 7 synchronizes with the intermittent reception cycle to measure a fixed period. When the time is counted, the slave unit 7 sends a timer correction signal (time chart (J) in FIG. 9). The base unit 6 receives the correction signal and sets the timer means d41 to set the timer means d41.
This is to eliminate the time lag t that occurs between the time counting repetition period 41 and the intermittent reception cycle (time chart (H) in FIG. 9). FIG. 14 shows an appearance of such a cordless telephone and a signal communication state.

FIGS. 10A and 11 show an example of the construction of the master unit 8 (a) and the slave unit 9 of the cordless telephone of the present invention as defined in claim 6, which is similar to the conventional example. Are denoted by the same reference numerals and description thereof will be omitted. In the figure, reference numeral 90 denotes a control signal from the base unit 8 (a) for notifying an incoming call, and the handset unit 9 receives the ring tone from the ring tone generation circuit 207 by the intermittent reception, and at the same time, the base unit 8 (a). ), A signal processing unit of the child device 9 adapted to output a reply signal to
At the same time as (a) receives the reply signal, the base unit 8 is made to ring the ring tone from the ring tone generation circuit 108.
It is a signal processing unit of (a).

The operation of such a cordless telephone when receiving an incoming call will be described with reference to the time charts (N) to (S) of FIG. 12. When a call is made from the public line (N), the main unit 8 ( Although a) is immediately received, the control signal for calling the child device 9 is transmitted from the wireless transmission / reception unit 102 for a certain transmission time without immediately sounding the ringing tone (O). On the other hand, the child device 9 is independent of the above operation of the parent device 8 (a),
In order to suppress battery consumption, the control signal is intermittently received at a cycle Ti shorter than the transmission time of the control signal (P), and when the wireless transmission / reception unit 202 receives the control signal, the ring tone generation circuit 207 outputs the control signal. At the same time when the ring tone is sounded, a reply signal is output from the wireless transmission / reception unit 202 to the base unit 8 (a). The main unit 8 (a) receives the reply signal at the wireless transmission / reception unit 102 and, at the same time, causes the ring tone generation circuit 108 to ring the ring tone for the first time. FIG. 15 shows an appearance of such a cordless telephone and a signal communication state.

The cordless telephone of the present invention as defined in claim 7 is proposed in consideration of the case where the reply signal from the cordless handset 9 is not returned in the cordless telephone according to claim 6 described above. A configuration example of the master unit 8 (b) is shown in b). The child device is similar to that shown in FIG. In FIG. 10 (b), 81 is a timer means f which is activated at the time of incoming call and measures a predetermined set time (<intermittent reception cycle Ti of the slave unit), and 80 (b) does not receive the above reply signal. When the timer means f measures the set time, the signal processing unit of the master unit starts ringing of the ring tone of the master unit.

The operation of such a cordless telephone at the time of the incoming call is substantially the same as that of the cordless telephone set of the above-mentioned claim 6, but the timer means f is activated at the time of the incoming call to receive the reply signal from the handset. However, when the timer means f measures the set time, the ring tone generation circuit 108 sounds the ring tone.

[0025]

According to the cordless telephone of the present invention proposed in claim 1, since the start of ringing tone ringing of the master unit can be delayed, the time difference between the ringing tone ringing of the master unit and the slave unit can be reduced. You can Further, the cordless telephone proposed in claim 2 is convenient because the delay time for starting ringing of the ring tone of the master unit can be changed manually.
In the cordless telephone proposed in claim 3, the start of ringing of the master unit can be delayed at random.
It is possible to reduce the time lag between the ringing sound of the master unit and that of the slave unit.

According to the cordless telephone of the present invention proposed in claim 4, the master unit and the slave unit can start ringing at the same time. Further, in the cordless telephone proposed in claim 5, in the cordless telephone proposed in claim 4, even when there is no telephone call in the cordless handset for a long period of time, the ring tone of the parent device and the cordless handset is always set to be the same. Can be set.

According to the cordless telephone of the present invention proposed in claim 6, the base unit and the handset can start ringing at the same time. Further, in the cordless telephone proposed in claim 7, in the cordless telephone proposed in claim 6, the power switch of the cordless handset is turned off, or the cordless handset is placed outside the reach of the control signal. However, the ringtone of the base unit can be activated.

[Brief description of drawings]

FIG. 1 is a configuration example diagram of a master unit of a cordless telephone according to the present invention as set forth in claim 1;

FIG. 2 is a diagram showing a configuration example of a master unit of the cordless telephone of the present invention according to claim 2;

FIG. 3 is a configuration example diagram of a master unit of the cordless telephone of the present invention according to claim 2;

4A to 4F are time charts for explaining the operation of the cordless telephone of the present invention according to claims 1 to 3. FIG.

FIG. 5 is a diagram showing a configuration example of a master unit of the cordless telephone of the present invention according to claim 4;

FIG. 6 is a diagram showing a configuration example of a slave unit of the cordless telephone according to the present invention as defined in claim 4;

FIG. 7 is a configuration example diagram of a master unit of the cordless telephone of the present invention according to claim 5;

FIG. 8 is a diagram showing a configuration example of a slave unit of the cordless telephone of the present invention according to claim 5;

9 (G) to (M) are time charts for explaining the operation of the cordless telephone of the present invention according to claims 4 and 5. FIG.

FIG. 10A is a diagram showing a configuration example of a master unit of the cordless telephone of the present invention according to claim 6; (B) is a diagram showing a configuration example of a master unit of the cordless telephone of the present invention according to claim 7.

FIG. 11 is a diagram showing a configuration example of a slave unit of the cordless telephone of the present invention according to claim 6;

12 (N) to (T) are time charts for explaining the operation of the cordless telephone of the present invention according to claims 6 and 7. FIG.

FIG. 13 is a diagram showing the appearance and signal communication status of the cordless telephone of the present invention according to any one of claims 1 to 4.

FIG. 14 is a diagram showing the appearance and signal communication status of the cordless telephone of the present invention according to claim 5;

FIG. 15 is a diagram showing the appearance and signal communication status of the cordless telephone set of the present invention according to claim 6 and claim 7;

FIG. 16 is a diagram showing a configuration example of a base unit of a conventional cordless telephone.

FIG. 17 is a diagram showing a configuration example of a slave unit of a conventional cordless telephone.

FIG. 18 is a diagram showing an appearance of a conventional cordless telephone and a signal communication state.

FIG. 19 is a time chart for explaining the operation of the conventional cordless telephone.

[Explanation of symbols]

1, 2, 3, 4, 6, 8 (a), 8 (b) ... Parent device 5, 7, 9 ... Child device 10, 40, 50, 60, 70, 80 (a), 80
(B), 90 ... Signal processing unit 102, 202 ... Wireless transmission / reception unit 102a, 202a ... Antenna 103 ... Line control unit 104 ... Display unit 105 ... Key operation unit 11, 41 , 71, 81, 106, 205 ... Timer means 21, 31, ... Variable timer means 107 ... Communication circuit 108, 207 ... Ring tone generation circuit SP ... Speaker M ... Microphone

[Procedure amendment]

[Submission date] March 3, 1993

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 19

[Correction method] Change

[Correction content]

FIG. 19

Claims (7)

[Claims] 1. A cordless telephone which delays the ringing tone of the base unit when receiving an incoming call to reduce the time difference from the ringing tone of the handset unit. The master unit has a timer means for timing a predetermined set time until the start and a signal processing section for causing the ring tone to ring from the ring tone generation circuit when the timer means counts the set time. A cordless telephone that is equipped with. 2. The cordless telephone according to claim 1, wherein the timer means is a variable timer means capable of manually changing a set time within a predetermined range. 3. A random number generation circuit for generating a random number upon receipt of an incoming call and inputting the random number to the timer means, wherein the timer means is within a predetermined range according to the input random number,
2. The cordless telephone according to claim 1, wherein the cordless telephone is a variable timer means which is configured to change a set time and to be activated at the same time when the setting change is completed. 4. A cordless telephone in which the ringing tone of the master unit is delayed when an incoming call is received to eliminate the time lag between the ringing tone of the slave unit and the intermittent reception cycle of the slave unit at the same time as the termination of the call of the slave unit. The master unit and the slave unit are equipped with a timer unit that repeats time measurement equal to the above, and a signal processing unit that starts ringing of the ring tone in the ring tone generation circuit after the call is received. A cordless phone that starts ringing at the same time. 5. A shift between the master unit and the intermittent reception cycle of the slave unit is corrected on the master unit side by a periodic signal from the slave unit. Cordless phone. 6. A cordless telephone in which a ringing tone of a master unit is delayed when an incoming call is received to eliminate a time lag between the ringing tone of a slave unit and a control signal from the master unit which notifies an incoming call. At the same time that the device receives the reply signal by the intermittent reception, it makes a ring tone from the ring tone generation circuit and at the same time outputs a reply signal to the master device, and at the same time as the master device receives the reply signal. A cordless telephone, comprising: a signal processing unit of a base unit configured to cause a ring tone to ring from a ring tone generation circuit. 7. A master unit is further provided with a timer means which is activated at the time of receiving an incoming call and measures a predetermined set time, and when the set time is measured without receiving the reply signal, the ring tone of the master unit sounds. The cordless telephone according to claim 6, which is adapted to start.