Communication receiver with automatic turn on/off

• US 4,860,005 A
• Filed: 01/07/1988
• Issued: 08/22/1989
• Est. Priority Date: 01/07/1988
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: DeLuca, Joan S., Dulaney, Randi L.
• Primary Examiner(s): NOT, DEFINED
• Assistant Examiner(s): Pudpud, Eric O.
• Application Number:
  US07/141,458
• Time in Patent Office: 593 Days
• Field of Search: 340/825.44, 340/825.22, 340/825.26, 340/825.27, 340/825.47, 340/825.48, 340/309.1, 340/309.4, 340/311.1, 379/105, 379/104, 379/102, 455/231, 455/228, 455/230, 455/343, 370/95, 368/10
• US Class Current: 340/7.38
• CPC Class Codes: G08B 3/1066 with other provisions not elsewhere provided for, e.g. turn-off protection
• CPC Class Codes: G08B 5/22 using electric transmission; using electromagnetic transmission
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0248 dependent on the time of the day, e.g. according to expected transmission activity
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A communication receiver is disclosed which can turn itself on or off depending upon the time of day. When the receiver is on, normal battery saving is performed. A time of day clock generates a time signal which is compared to predetermined turn on and turn off times. The turn on and turn off times may be permanently stored in memory or may be manually programmed at the receiver or may be received by the receiver and stored in a reprogrammable memory.

Claims

1. A multistate selective call receiver capable of receiving and processing modulated information in a high power consumption state of power on or in an alternative, inhibiting the receiving and processing of the modulated information, thereby operating in a lower power consumption state of power off, the power on and power off consumption state selection being dependent upon time of day, said receiver comprising;

timekeeping means for generating a time signal including time of may information;

memory means for storing at least one power on time and at least one power off time, both including time of day information;

comparison means coupled to said timekeeping means and the memory means for generating a power on request signal, wherein the power on request signal is generated when the time signal equals any of the power on times and the power on request signal is terminated only when the time signal equals any of the power off times;

power control means for providing operating power solely in response to the presence of the power on request signal; and

receiving means responsive to the operating power and coupled to the power control means for receiving and processing modulated information.

2. The multistate selective call receiver recited in claim 1 wherein the modulated information comprises an address portion, the selective call receiver being capable of receiving and processing the address portion and generating an alert signal when the address portion closely matches a predetermined address particular to the selective call receiver.

3. The multistate selective call receiver recited in claim 1 further comprising:

display means for interpreting the time signal and displaying information contained in the time signal in a readable manner.

4. The multistate selective call receiver recited in claim 1 further comprising:

switch means for generating a manual power on request signal, wherein the switch is manually activated by the operator of the multistate selective call receiver; and

the power control means additionally being responsive to the manual power on request signal thereby providing operating power for the receiving means.

5. The multistate selective call receiver recited in claim 1 wherein:

the timekeeping means further generates a time signal comprising day of week, date and month information fields;

the first memory means stores at least one power on time and at least one power off time wherein each power on and power off time may specify any combination of time of day, day of week, date and month information fields; and

the comparison means being responsive to the time signal, and the power on times and the power off times, wherein the power on request signal is generated when all of the specified information fields in any of the power on times equals the corresponding information fields in the time signal and the power on request signal is terminated only when all of the information fields specified in any of the power off times equal the corresponding information fields in the time of day signal.

6. The multistate selective call receiver as recited in claim 1 wherein the power on and power off times are predetermined and the memory means includes a PROM (programmable read only memory) for storage of said predetermined power on and power off times.

7. The multistate selective call receiver as recited in claim 1 further comprising:

switch means for manual entry of power on and power off times; and

setting means responsive to the switch means for loading and modifying the power on and power off times in the memory means.

8. The multistate selective call receiver as recited in claim 7 further comprising:

display means for displaying readable information; and

the setting means further controlling the display means during the manual entry of the power on and power off times for readable verification of the manually entered power on and power off times.

9. The multistate selective call receiver recited in claim 2 wherein the modulated information further includes an information portion comprising modified or additional power on and power off times, the multistate selective call receiver being capable of receiving and processing the information portion and further comprising:

setting means responsive to the received and processed power on and power off time information, wherein the setting means deletes, adds or modifies the corresponding power on and power off times in the memory means.

10. The multistate selective call receiver recited in claim 2 further comprising:

alert generating means responsive to the alert signal for generating a sensible alert indicating that an address has been decoded.

11. The selective call receiver recited in claim 10 wherein the sensible alert is audible.

12. The multistate selective call receiver recited in claim 10 wherein the alert generating means being additional responsive to the comparison means, generates a signal in response to a state change of the power on request signal.

13. The multistate selective call receiver recited in claim 1 further comprising:

a delay means responsive to the comparison means for sustaining the power on request signal beyond a power off time for a predetermined delay; and

a signalling means responsive to the delaying means for indicating the impending termination of the power on request signal wherein the power on request signal is terminated upon expiration of the predetermined delay.

14. The multistate selective call receiver recited in claim 13 further comprising a manual resetting means coupled to the delay means for terminating the power on request signal upon activation of said manual resetting means prior to the expiration of the predetermined delay, thereby terminating the indication of the signalling means.

15. The multistate selective call receiver recited in claim 13 further comprising a manual overriding means coupled to the delay means for maintaining the power on request signal until the occurrence of a subsequent power off time, the maintenance occurring when the manual overriding means is operated during the predetermined delay.

16. The multistate selective call receiver recited in claim 1 further comprising:

switching means for generating a mode signal, wherein the switch is manually activated by the operator of the multistate selective call receiver; and

the power control means being additionally responsive to the switching means for enabling response to the comparison means when the mode signal is present and for inhibiting responses to the comparison means in the absence of the mode signal, wherein the power control means maintains the state of the receiver upon the absence of the mode signal.

17. A method of switching a selective call receiver on or off dependent upon time of day comprising the steps of:

(a) generating a time signal within a clock means;

(b) comparing the time signals to a set of predetermined power on and power off times stored in a memory means;

(c) switching a receiving means on when the time signal corresponds to a power on time;

(d) receiving and processing modulated information;

(e) battery saving the receiving means when the receiving means is on;

(f) switching the receiving means off when the time signal corresponds to a power off time; and

(g) repeating steps (c) through (f) indefinitely.

18. The method of claim 17 wherein step (d) of receiving and processing further comprises:

decoding selective call addresses from the modulated information;

comparing the address to a predetermined address; and

generating an alert signal when a decoded address closely matches the predetermined address.

19. The method of claim 17 further comprising the step of:

displaying the time signal of step (a) in a readable manner.

20. The method of claim 17 further comprising the steps of:

switching the receiving means on in response to a manual input; and

switching the receiving means off in response to a manual input.

21. The method of claim 17 wherein the predetermined times once programmed are not modifiable.

22. The method of claim 17 further including the step of:

manually modifying the predetermined times via entry means included within the selective call receiver.

23. The method of claim 17 further including the steps of:

decoding power on and power off times from the modulated signal; and

modifying the predetermined power on times and power off times with the decoded power on and power off times.

24. The method of claim 17 including the steps of:

delaying for a predetermined delay time the switching off of the receiving means when the time signal corresponds to a power off time; and

indicating the impending switching off of the receiving means for the duration of the predetermined delay time; and

switching off the receiver means upon expiration of the predetermined delay time.

25. The method of claim 24 including the steps of:

suspending the step of delaying upon activation of a manual resetting means prior to the expiration of the predetermined delay time; and

causing the receiver means to be switched off upon suspension of the step of delaying.

26. The method of claim 24 including the step of:

maintaining the step of delaying beyond the predetermined time delay upon activation of a manual overriding means, such delay continuing until the time signal corresponds to a subsequent power off time.