Many vehicle are equipped with door locks that are capable of automatically locking or unlocking the doors responsive to wireless signals such as radio frequency (RF) signals. These vehicles may be associated with portable wireless transmitters capable of transmitting the necessary wireless signals that cause the locks to lock or unlock the doors. Typically, such wireless transmitters are provided in the form of a key fob that is connected to or is adapted to be connected to one or more keys. For example, a key fob may include a metal ring to which keys may be attached. Such keys may include an ignition/door key for the vehicle and/or other keys (e.g., keys for locks associated with home doors, garages, safes, padlocks, and other objects). Other key fobs may be directly attached to an end of an ignition key and may include one or more rings for attaching additional keys to the key fob.
Such key fobs (and/or the ignition key mounted thereon) may also include an integrated radio-frequency identification (RFID) chip/circuit that is required to be placed near the ignition lock of the vehicle in order to enable the engine of the vehicle to be started. Also, such key fobs may include additional buttons that are operative to wirelessly activate an alarm siren in the vehicle and/or carry out other actions such as opening and closing sliding doors, trunk lids and hatches of the vehicle.
Key fobs offer a user the ability to more conveniently lock and unlock door locks from a distance of many yards from the vehicle. However, because a user no longer needs to directly lock the doors of the vehicle, the capability of wirelessly locking a vehicle may increase the likelihood that the user forgets to lock the vehicle. Thus improvements to the technology associated with locking and unlocking doors may be needed.
The following is a brief summary of subject matter that is described in greater detail herein. This summary is not intended to be limiting as to the scope of the claims.
In example embodiments, key fobs may be adapted to have the capability to provide an indication as to which of the lock and unlock buttons of the key fob was last pressed. For existing key fobs, example embodiments of the invention described herein may correspond to at least one flexible band that wraps around the key fob and/or may correspond to an enclosure which encases the key fob. Such an at least one band or enclosure may include a circuit capable of detecting lock/unlock button presses for use with providing the indication of which button was last pressed. In an alternative embodiment, key fobs may be manufactured to include an integrated circuit that provides this indication.
These described embodiments may include first and second spaced-apart switches which are respectively associated with first and second light emitters. For the embodiment that wraps around and/or encloses at least portions of the key fob, the first and second switches may be positioned so as to be aligned to cover the respective lock and unlock buttons of the key fob. When a user presses either switch, the underlying lock/unlock button is pushed as well to cause a door of a vehicle to be wirelessly locked or unlocked by the key fob. For the key fob that is manufactured to include an indicator circuit, the first and second switches may correspond to the actual lock and unlock buttons of the key fob.
In these example embodiments, a controller (whether in operative supported connection with the at least one flexible band and/or the enclosure or integrated into the housing of the key fob) is responsive to activation of the first and second switches to store data in a memory that represents which of the first and second switches was activated most recently. The controller is also responsive to the data stored in the memory and activation of a third switch (in operative connection with the controller), to cause either the first or second light emitter to emit light. In this described embodiment, the particular first or second light emitter that is turned on to emit light is based on which one of the associated first or second switches the memory data indicates was activated more recently. Thus if the lock button was last pushed, the controller causes the light emitter adjacent to the lock button to emit light. Also, if the unlock button was last pushed, the controller causes the light emitter adjacent the unlock button to emit light.
With these described embodiments, a user may press the third button when the user needs to receive a visual reminder (via one of the light emitters) regarding whether the lock button or the unlock button was last pressed. If the user intended to lock a vehicle, an indication that the lock button was last pressed can reassure the user that the vehicle is likely in a locked state. Conversely, if there is an indication that the unlock button was last pressed, then user can go back to the vicinity of the vehicle and use the key fob to lock the doors.
Other aspects will be appreciated upon reading and understanding the attached figures and description.
Various technologies pertaining to key fobs will now be described with reference to the drawings, where like reference numerals represent like elements throughout. In addition, it is to be understood that functionality that is described as being carried out by certain system components may be performed by multiple components. Similarly, for instance, a component may be configured to perform functionality that is described as being carried out by multiple components.
With reference to
The apparatus may also include (in operative supported connection with the body) a third switch 108, and one or more output devices such as a first light emitter 110 and a second light emitter 112. The first and second light emitters are spaced apart along the body such that each is respectively adjacent different portions of the body 102 that includes the respective first and second switches 104, 106. In this described embodiment, the light emitters may correspond to one or more LEDs. However, in alternative embodiments other types of output devices may be used that are operative to output information (e.g., LCD display, sound emitters, etc.).
As illustrated in
In this described embodiment, the controller may correspond to a processor or an integrated circuit chip that is operatively configured or programmed to control (and/or operate responsive to) the switches and light emitters. However it should be appreciated that in alternative embodiments, the controller may correspond to an analog circuit without a processor or integrated circuit chip, which is operatively configured to carry out corresponding functions described herein.
In example embodiments, the controller is operatively configured to be responsive to activation (e.g., pressing) of the first and second switches to store data in the memory that represents which of the first and second switches was activated most recently. In addition, the controller is operatively configured to be responsive to activation of the third switch and the data stored in the memory to cause the first light emitter to emit light when the data stored in the memory is indicative of the first switch having been activated more recently than the second switch. Also, the controller is operatively configured to be responsive to activation of the third switch and the data stored in the memory, to cause the second light emitter to emit light when the data stored in the memory is indicative of the second switch being activated more recently than the first switch.
In an example embodiment, the body 102 may include at least one flexible band that is operative to enable the apparatus to wrap around at least a portion of the key fob. The first switch 104 and the first light emitter 110 may be positioned on a first end 120 of the body 102, while the second switch 106 and second light emitter 112 may be positioned on an opposed second end 122 of the body 102.
With the indicator apparatus mounted to a key fob 202 as shown in
To facilitate the switches being activated, as shown in
In this described embodiment, the projections 124, 126 may correspond to portions of the switches themselves. However, in alternative embodiments, the projections 124, 126 may correspond to movable portions of the body which are operative to activate the switches mounted inside the ends 120, 122 of the body.
As shown in
In order to mount the indicator apparatus, the inner face surface of the body may include a pressure-sensitive adhesive that is operative to adhesively adhere the apparatus in place to surfaces of the key fob. For example, as illustrated in
In the previously described embodiment, the light emitters and switches are mounted on the opposed ends of the body of the indicator apparatus. For example, such light emitter and switches may be mounted to opposed ends of first and second ribbon cables (with wires therein) connected to opposite sides of a circuit board that includes the described controller. However, it should be appreciated that in alternative embodiments, the various switches and light emitters may be positioned at other locations and/or may be connected together in a different configuration. Further, alternative embodiments may use other mechanisms (besides an adhesive) to mount the indicator apparatus to a key fob.
For example,
As illustrated in
In one or more of the previously described embodiments, the body may include one or more flexible portions (such as ribbon cables) and/or stretchable portions (such as a natural and/or synthetic rubber or a stretchable woven fabric) to enable the body to extend around different models of key fobs (with different sizes and shapes). Also, in a further alternative embodiment, the body may be formed as a continuous loop, which has no opposed ends. This further embodiment may be similar to the embodiment shown in
The previously described embodiments correspond to a body in the form of one or more flexible bands that enable the indicator apparatus to wrap around a key fob. However, it should be appreciated that another alternative embodiment may include the described indicator apparatus in a form that is mounted or integrated into the key fob itself.
In this described embodiment, the previously described first and second switches correspond to a switch 710 that corresponds to the lock button and a switch 712 that corresponds to the unlock button. As with conventional key fobs, the controller is responsive to activation of the first switch 710 (i.e., the lock button) to cause the RF transmitter to emit an RF signal that is operative to cause at least one lock device 720 of a vehicle 722 (or other object) to change from an unlocked configuration to a locked configuration. Likewise, the controller is responsive to activation of the second switch 712 (i.e., the unlock button) to cause the RF transmitter to emit an RF signal that is operative to cause the at least one lock device 720 to change from the locked configuration to the unlocked configuration. Further, as with the previously described controller 114 (shown in
In addition, as shown in
In this described embodiment, the circuit board 808 may include first and second bands 812, 814 (e.g., ribbon cables) that extend outwardly from a common side of the circuit board in order to extend over a top face 816 of the key fob 806. The ends of the first and second bands 812, 814 may include respective first and second switches 818, 820. The bands 812, 814 may have lengths which place the first and second switches 818, 820 over the respective lock and unlock buttons 822, 824 of the key fob 806, when the circuit board and key fob are positioned in the at least one cavity of the enclosure.
The described circuit board 808 may also include first and second light emitters 826, 828 that are spaced apart and respectively aligned with the respective spaced-apart first and second bands 812, 814; first and second switches 818, 812; and/or lock and unlock buttons 822, 824. In addition, the circuit board 808 may include a third switch 832 and one or more battery 832.
In this described embodiment, the controller 810 is in operative connection with the first switch 818, the second switch 820, the third switch 830, the first light emitter 826 and the second light emitter 828. The controller may include or may be in operative connection with a memory 116, and the battery may be configured to provide power needed to operate the controller and the light emitters.
As in the previously described embodiments, the controller 810 is operatively configured to be responsive to activation (e.g., pressing) of the first and second switches 818, 820 (which activation also activates the underlying lock and unlock buttons of the key fob) to store data in the memory that represents which of the first and second switches was activated most recently. In addition, the controller is operatively configured to be responsive to activation of the third switch 830 and the data stored in the memory, to cause the first light emitter 826 to emit light when the data stored in the memory is indicative of the first switch being activated more recently than the second switch. Also, the controller is operatively configured to be responsive to activation of the third switch and the data stored in the memory, to cause the second light emitter 828 to emit light when the data stored in the memory is indicative of the second switch being activated more recently than the first switch.
In this described embodiment, the enclosure 804 portion of the body 802 may correspond to a clear and/or translucent plastic case which encapsulates the key fob 806 and the circuit board 808 in adjacent relation (e.g., the circuit above the top edge of the key fob) so that the first and second switches 818, 820 remain positioned over the lock and unlock buttons.
Also as shown in
As shown in
In these described examples, at least portions of the walls of the enclosure (such as the top lid 836) may be made from a plastic that is sufficiently deformable to enable a user to selectively engage the first and second switches 818, 820 (and the underlying lock and unlock buttons 822, 824) as well as the third switch 830, when pressing down on the portions of the walls of the enclosure overtop of the respective switches 818, 820830. However, it should be appreciated that in alternative embodiments the enclosure may include apertures through the walls of the enclosure (e.g., through the top lid) adjacent the switches 818, 820, 830, and lock and unlock buttons 822, 824 to enable direct contact of these switches and buttons via fingers of a user. Similarly, the enclosure may include apertures through the walls for other buttons on the key fob.
In this described embodiment, at least portions the walls of the enclosure (e.g., such as the top lid) may be clear and/or sufficiently translucent at the locations of the key fob buttons and/or light emitters, to enable the buttons and/or light switches to be visible through the walls of the enclosure. However, it should be appreciated that alternative embodiments may include all or portions of the enclosure that are opaque. In such embodiments, the outside walls of the enclosure may include symbols, shapes, or other visual cues to identify the location of the buttons of the key fob and/or the first, second, and third switches. Also, apertures may be positioned above the light emitters to enable light from the light emitters to be visible through the enclosure.
Example embodiments of the enclosure may be made out of a plastic such as PET, PVC, polyethylene, polypropylene, or other type of plastic that is capable of being flexible adjacent the buttons of the key fob and switches of the apparatus. Also, alternative embodiments may include at least portions of the enclosure that are made out of other types of materials such as a flexible natural or synthetic rubber, woven cloth, fiberglass, graphite, carbon fiber, titanium, aluminum, other type of metal, ceramics and/or any other material that is operative to encapsulate a key fob and a circuit board.
In addition, it should be appreciated that the enclosure may be comprised of one piece (e.g., a sleeve), two pieces (e.g., a base with a lid), or more pieces. Also, although the described embodiment is operative to mount a top lid onto a bottom base without separate fasteners, it should be appreciated that in alternative embodiments, the multiple pieces of the housing may be engaged together using separate fasteners which include adhesives, screws, bolts, hoop and loop fasters, and or any other type of fastener.
In addition, it should be appreciated that the enclosure may include printed indicia thereon. Such printed indicia may include text, symbols, and other graphics. For example, to enable the locations of the lock and unlock buttons to be more readily identified, lock and unlock symbols and/or text may be located on the portions of the enclosure that overlie the respective lock and unlock buttons.
Referring back to
In the previously described embodiments, the controllers 114, 708, 810 may be operatively configured to be responsive to activation of the first switch to cause the first light emitter to emit light for a predetermined amount of time (e.g., from 5 to 300 seconds). The controllers 114, 708, 810 are also operatively configured to be responsive to activation of the second switch to cause the second light emitter to emit light for the predetermined amount of time (or a different predetermined amount of time). As a result, if the user looks down at the key fob within the predetermined amount of time after activating the lock or unlock buttons, the user can visually see which button was last pressed (via the adjacent light emitter) without having to press the third switch.
With reference now to
As shown in
In addition, the methodology may include a step 1008 of receiving at least one input through a third switch and a step 1010 of causing, responsive to activation of the third switch and the data stored in the memory, either: a first light emitter to emit light when the data stored in the memory is indicative of the first switch being activated more recently than the second switch; or a second light emitter to emit light when the data stored in the memory is indicative of the second switch being activated more recently than the first switch. At step 1012, the methodology may end.
As discussed previously, the first switch, the second switch, the third switch, the first light emitter, the second light emitter, and the memory may also be included in the body and may be in operative connection with the controller.
In embodiments of the indicator apparatus where the body includes a flexible band or an enclosure, the apparatus may also include a first projection and a second projection (on one of the faces of a flexible band and/or on the ends of separate bands connected to a circuit board). Such projections may be spaced apart a sufficient distance such that the first projection is adjacent the unlock button and the second projection is adjacent the lock button. Thus, in step 1002, when the input corresponds to receiving manual pressure applied to the body (e.g., applied to portions of the flexible band or enclosure), the manual pressure either: causes activation of the first switch and causes the first projection to activate the unlock button; or causes activation of the second switch and causes the second projection to activate the lock button.
In embodiments of the indicator apparatus where the body is a housing of the key fob, when the lock button (i.e., the first switch) is activated in step 1002, the method also includes the controller causing the RF transmitter to emit an RF signal that is operative to cause at least one lock device to change from an unlocked configuration to a locked configuration. Also, when the unlock button (i.e., the second switch) is activated in step 1002, the method includes the controller causing the RF transmitter to emit an RF signal that is operative to cause the at least one lock device to change from a locked configuration to an unlocked configuration.
In the previously described embodiments, the first switch and the first light emitter are spaced apart on the flexible band and/or inside the enclosure from the second switch and the second light emitter. As a result, a user of the apparatus can visually see that the first light emitter (when)) indicates that the adjacent lock button was activated most recently. Likewise, a user of the apparatus can visually see that the second light emitter (when lighted) indicates that its adjacent unlock button was activated most recently.
However, it should be appreciated that in alternative embodiments, the indicator apparatus (either with a band/enclosure, or integrated into a key fob) may include other types of output devices to indicate which button was last pressed. For example, alternative embodiments may include an LCD screen. When the third button is pressed, the controller may cause the LCD screen (responsive to the data stored in the memory), to display the word “locked” or “unlocked”. Also, rather than display words, the LCD screen may display corresponding symbols such as a picture of locked padlock and an unlocked padlock.
Also, example embodiments may include a sound emitter. The controller may be operative to cause the sound emitter to output different sounds (e.g., chirps and/or verbal words such as “locked” or “unlocked”) depending on which one of the first and second switches was pressed most recently.
It is noted that several examples have been provided for purposes of explanation. These examples are not to be construed as limiting the hereto-appended claims. Additionally, it may be recognized that the examples provided herein may be permutated while still falling under the scope of the claims.
Number | Date | Country | |
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61441306 | Feb 2011 | US |