It is useful to detect movement of a person's limbs or body and to provide a warning or a notification to the person of that movement. As an example, notification of movement of a person's hand toward the face can warn the person of a face touch, which could cause transfer of germs or other contaminants from the person's fingers or hand to the face. As another example, movement of the arms or positioning of the arms in an intended position can be denoted to provide training of a golf swing or of hitting a baseball. Detection of movement of a person's feet can provide an indication of proper stride for a runner.
According to the invention, in one aspect, at least one light source is disposed on a user's wrist, ankle or other body part and configured to emit light which becomes visible to the user when the wrist, ankle or other body part carrying the light source moves into the peripheral field of the user.
In another aspect, at least one light source is disposed on an object used by or associated with a user and configured to emit light which becomes visible to the user when the object moves into the peripheral visual field of the user.
The acuity of human peripheral vision is only about 20/200 but is sufficient to detect light coming into peripheral view by reason of sensitivity to change and sensitivity to color.
In one embodiment, a device in accordance with the invention is contained within a wristband adapted to be worn on the wrist of the user and containing at least one light source mounted in a position to emit light visible in the peripheral field of a wearer during movement or positioning of the user's hand or arm. The light source is typically a light emitting diode (LED) which is recessed or partially shielded in a portion of the wrist band to limit the visible light viewable by the wearer, until the wearer's hand or arm moves along an intended path to become visible in the peripheral visual field of the wearer. The light source may emit light of any suitable color, which may be fixed or flashing to enhance visibility.
In another embodiment, a device in accordance with the invention is contained in an ankle band or strap adapted to be worn about the ankle of a wearer.
In a further embodiment, a device in accordance with the invention is disposed on an object used by or associated with the user, which may be for example, a gold club, baseball bat, tennis racket or other sports object, or a music conductor's baton, ballet slippers and the like.
The light source is powered by a battery operating control circuit disposed in a housing which can be attached to or incorporated in a wrist band, ankle band or other body or device attachment.
The invention will be more fully understood from the following detailed description in conjunction with the accompanying drawings, in which:
This patent application claims priority from U.S. Provisional Application No. 63/050,238, filed Jul. 10, 2020, the disclosure of which is incorporated by reference herein in its entirety.
The band 12 or a portion thereof can be of sufficient thickness to contain the control circuit and battery within a section thereof, without need for a separate housing as in
The device can be incorporated on a wrist band in a variety of ways. One implementation is shown in
The invention may alternatively be embodied in a wristwatch or smart watch. The LEDs 16 are electrically connected to printed circuit traces disposed in the band, and which are connected in the housing to the control circuitry.
In the illustrated embodiment, two LEDs 16 are shown, although a single LED, or more than two LEDs, may be provided in alternative embodiments. The control circuit contained in housing 10 is preferably an integrated circuit powered by one or more battery cells and operative to power the LEDs. The control circuit can provide pulse power to the LEDs to cause flashing of the LEDs for increased visibility to a wearer. An on-off switch can be provided for the control circuit, or the circuit can be energized automatically such as by placement of the wrist band on a user's wrist. The means for such automatic activation are known.
In use, light from the LEDs is not readily visible to a wearer during usual hand use such as during walking, writing, typing and the like. If the wearer raises his or her hand toward the wearer's face, the light from the LEDs becomes visible in the peripheral visual field of the wearer and serves to warn the wearer not to touch the face.
In another embodiment, the wrist worn device is worn by a baseball batter and includes a flashing LED positioned such that the light is seen by the batter during his/her swing. In use, a batter focuses on an incoming ball thrown by a pitcher. The peripheral vision of the batter is utilized to inform the batter about hand position during a completed swing. The LED is preferably red and flashing which increases the wearer's ability to see the light in their peripheral vision. As an example of usage, a right-handed batter may decide that he wants his hands out in front of the swing (closer to the pitcher than the bat head is), because he has decided that he wants to hit to right field. The persistence of the LED image noticed peripherally at the point of impact with the ball will inform the batter about his level of success in maintaining the desired hand position, and allow the batter to adjust his approach to better attain the desired goal. The device may also be employed for other sports movements, such as tennis, boxing, gymnastics, bowling and the like.
A wrist band embodiment such as shown in
Another embodiment is shown in
The embodiment of
A further embodiment is shown in
A further embodiment of the invention is realized in an ankle worn band that signals to a runner their success or failure to perform within desired parameters. A module that contains one or more LEDs is positioned on the band to provide light visible to the runner. Signal circuitry is provided to detect impact of a foot upon a running surface, a GPS to monitor location, and Bluetooth or other wireless signaling to receive personalized measurement data from the wearer's smartphone. The device can be implemented to monitor the runners speed, stride, length, or intensity of foot impact. The runner's performance in comparison to a predetermined set of data, is signaled privately to the runner by a flashing LED located on the upside of the ankle band, and visible in the peripheral vision of the runner. The peripheral vision is especially sensitive to detection of flashing lights. Proper LED placement and baffling such as described herein is provided to limit by visibility of the light to only the user. The signaling scheme can use multi-colored lights. For example, the LED can flash every few seconds with a green color used to indicate success with desired parameters, and a red color to indicate variance from desired parameters.
The invention may be embodied in many different forms using a variety of materials which per se are well known, and may be utilized in various activities in which the motion and/or position of a body part or object associated with the body is of interest. Accordingly, the invention is not to be limited by the embodiment described above but is to embrace the spirit and full scope of the claims.
Number | Date | Country | |
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63050238 | Jul 2020 | US |