US20140157538A1 - Personal care implement having a display - Google Patents

Abstract

A personal care implement or toothbrush includes a sensor for detecting a position of the toothbrush and orientation display for providing content to a user. The display may be configured to present content in a mirror-image format. The personal care implement may be configured to operate in one or more modes of operation. One or more components may be included for setting variables associated with the modes of operation, for changing an orientation of the displayed content between a mirror-image format and forward-facing format, and for changing the particular mode of operation.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS
• The present application is a continuation of U.S. patent application Ser. No. 13/433,785, filed on Mar. 29, 2012, now allowed, which is a continuation of U.S. patent application Ser. No. 11/853,078, filed on Sep. 11, 2007, now U.S. Pat. No. 8,159,352, issued on Apr. 17, 2012, the contents of which is hereby incorporated by reference in their entireties.
BACKGROUND OF THE INVENTION
• The present invention pertains to a personal care implement, in particular, to a toothbrush with sensors. Tooth brushing is part of a daily oral hygiene activity. Dentists generally recommend that an individual brush his or her teeth for a minimum interval per cleaning, such as two minutes. Despite such recommendations, many individuals, especially young children, do not regularly brush their teeth for the recommended minimum interval.
BRIEF SUMMARY OF THE INVENTION
• The invention pertains to a personal care implement including a care region for engaging an anatomical region of an organism, a body for gripping the implement and a sensor to detect the position of the personal care implement.
• In a further aspect, the sensor detects a rotation of the body about an axis normal to a longitudinal axis of the body.
• In yet another aspect, the sensor is an accelerometer.
• In another aspect, the personal care implement includes a display to provide information to a user of the implement.
• In another aspect, the personal care implement may include at least one actuator configured to change a mode of operation of the oral care implement.
• In yet another aspect, the implement may include at least one actuator configured to change an orientation of the content on the display of the oral care implement.
• In another aspect, the implement includes a sensor configured to rotate the content being presented upon detection of a rotation of the oral care implement about an axis.
• Other features and advantages of the invention will become apparent from the following description taken in conjunction with the following drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
• FIGS. 1A-1B are perspective front and rear views of an oral care implement, such as a toothbrush, according to one or more embodiments of the invention;
• FIGS. 2A-6B are enlarged views of the implement portions with a display; and
• FIG. 7 is an example functional block diagram of components of the implement with an electronic display system according to one or more embodiments of the invention.
DETAILED DESCRIPTION OF THE INVENTION
• In the following description, the invention is discussed in terms of a toothbrush (e.g. a form of an oral care implement) but could be in the form of other personal care implements, such as a hair dryer. The personal care implement is normally used by a human for personal hygiene. For example, a toothbrush can be used for personal hygiene, such as oral care purposes. Further, it is understood that other embodiments may be utilized and structural and functional modifications may be made without departing from the scope of the present invention.
• FIGS. 1A-1B illustrate an oral care implement, such as a toothbrush, generally designated with thereference numeral100. Thetoothbrush100 generally includes a head102 and ahandle103.
• Thehandle103 is generally an elongated member dimensioned so that a user can readily grip and manipulate thetoothbrush100. Thehandle103 may be formed of many different shapes, lengths and with a variety of constructions. In one construction, thehandle103 has aneck portion105 positioned adjacent thehead101. Theneck portion105 may be a narrowed region on thehandle103 betweenhead101 and the part of the handle normally gripped by the user. Nevertheless, theneck portion101 could be the region between thehead101 and the part of the handle normally gripped by the user. In another construction, thehandle103 is integrally formed with thehead101. Other attachment configurations also are possible.
• Thehead101 may include an oral care region comprising one or moretooth cleaning elements111. As used herein, the term “tooth cleaning elements” or “cleaning elements” includes any type of structure that is commonly used or is suitable for use in providing oral health benefits (e.g., tooth cleaning, tooth polishing, tooth whitening, massaging, stimulating, etc.) by making contact with portions of the teeth and gums. Such tooth cleaning elements include but are not limited to tufts of bristles that can be formed to have a number of different shapes and sizes and elastomeric cleaning members that can be formed to have a number of different shapes and sizes, or a combination of both tufts of bristles and elastomeric cleaning members.
• In one construction, the one or moretooth cleaning elements111 are formed from a plurality of bristles. Referring toFIGS. 1A-1B, thetooth cleaning elements111 are bristle regions having different shapes, however, it is understood that a number of different configurations of oral care implements may be utilized. The one or moretooth cleaning elements111 may be attached to thehead101 by known methods, such as being fit within recesses formed in thehead101 along afront portion107 of the toothbrush100 (FIG. 1A). Thehead101 also may be configured to be detached from theneck105 or handle103 and replaced with anew head101 when theprevious head101 wears out and should be replaced.
• In another construction,toothbrush100 may be a powered toothbrush including a power source that drives a powered element, such asmovable cleaning elements111 with an activation/deactivation or “on/off” button (not shown).
• FIG. 1A illustrates afront portion107 of thetoothbrush100 andFIG. 1B shows arear portion109 of thetoothbrush100. In the illustrativeFIGS. 1A-1B, athumb gripping portion115 is also shown. A user may hold thetoothbrush100 with their thumb resting on grippingportion115.Thumb gripping portion115 may be formed of a pliable, cushioning material that is depressible as a user presses their thumb against it. In one or more constructions, as described herein, thethumb gripping portion115 may serves as an actuator. For example,portion115 may act as a button to turn an electronic device associated with thetoothbrush100 “on” and/or “off,” a button to change a mode of operation of an electronic device associated with thetoothbrush100, and/or a button to change an orientation of the content of a display associated with thetoothbrush100.
• Referring toFIG. 1B,display121 presents symbolic or graphical content for viewing by a user. The symbolic or graphical content may include characters or images associated with digital data. In one construction, the content may include video clips or other moving images and characters for dynamic viewing by a user.Display121 is disposed within theneck portion105 on theback portion109 of thetoothbrush100. In this arrangement, the oral care region is oriented in a first direction (e.g., extending away from the front portion107) and the display is oriented in a second direction opposed to the first direction.Display121 may be a liquid crystal display (LCD) or a light emitting diode (LED) type display among other types. For example, display may be an Organic LED that can be tuned to provide a desired luminescent characteristic such as color, temperature, intensity etc. OLED technology can be embedded into the toothbrush molding, or can be applied to the surface of the toothbrush body. It should be understood by those skilled in the art that the present invention is not limited to any particular type of display.
• FIGS. 2A-6B illustrate alternative constructions of the oral care implement, generally designated with thereference numerals200,300,400,500, and/or600, respectively. For ease of explanation, similar structures will be referred to with similar reference numerals, using a 200, 300, 400, 500, or 600 series numerals.
• FIGS. 2A-2B illustrate a display region of a toothbrush according to one or more embodiments. As shown inFIG. 2A, atoothbrush200 includes adisplay221 disposed within theneck portion205. Although shown in theneck portion205, it should be understood that other areas of thetoothbrush200 may be utilized to house thedisplay221. For example, the display could be located in the handle region on the side opposite thetooth cleaning elements111. As shown inFIG. 2A, the content of thedisplay221 refers to a time of day for clock reading, i.e., 7:07 AM.Display221 may also present other content such as the current day, month, year, or century; future appointments or meeting reminders. In this arrangement, thedisplay221 functions as clock device or time piece.
• As shown inFIG. 2A,toothbrush200 may include two settingactuators227. In this example, settingactuators227 may be configured to allow a user to depress, or otherwise engage, one or more of theactuators227 to set an hour and a minute for the time of day. Asingle actuator227 and/or more than twoactuators227 may be utilized fortoothbrush200. For example, athird setting actuator227 may be included to set the time with a designation of AM or PM.
• One or more additional actuators may be included to perform a variety of functions. As shown inFIG. 2A, twoadditional actuators223 and225 are shown. In this example,actuators223 and225 may be push buttons. In other examples,actuators223,225, and227 may be other types of input actuators. For example, they may be a switch or other type of input mechanisms or devices. In this example,actuator223 may be a mode selection actuator.Actuator223 allows a user to change the mode of operation of thedisplay221 to any of a number of different operations. For example, and as described with respect toFIGS. 2A and 2B, depression or other engagement ofactuator223 may change the mode of operation to present a time of day or clock reading on thedisplay221. A subsequent engagement ofactuator223, may change the mode of operation to a stroke counter, as illustrated in the example shown inFIGS. 3A and 3B. A further subsequent engagement ofactuator223 may change the mode of operation to a countdown or count-up timer, as illustrated in the example shown inFIGS. 4A and 4B. Nevertheless, the specific order of the engagement events of theactuator223, does not limit the scope of the invention.
• In one construction, the presented content changes corresponding to the change in time when operating in a mode to display a time of day for clock reading on thedisplay221. In addition, the designation of AM may change to PM when the 12th hour of the day has been reached. Similarly, the PM designation may change to AM when midnight is reached. Although described herein as a clock reading, thedisplay221 in this mode of operation may present the current date or future date in lieu of, or in combination with the presented time.
• Returning to the example inFIG. 2A,actuator225 may serve as an orientation actuator for the content presented indisplay221. In one operation, whendisplay221 is in a forward facing direction for viewing by the user, the content shown on thedisplay221 inFIG. 2A may be easily read in a left to right direction by the user (e.g., a forward-facing format). However, when thedisplay221 is in a rear-facing direction away from the user, the content is blocked from the view of the user. Furthermore, in the rear facing arrangement ofdisplay221, when the content is viewed as an image on a reflective surface, the image of thedisplay221 is reversed with respect to the forward facing direction.
• In a construction oftoothbrush200, upon depression or other engagement of theorientation actuator225, the content presented on thedisplay221 is changed to a mirror-image of the original content. Accordingly, the original content shown in thedisplay221 inFIG. 2A is re-oriented or re-formatted to the content shown inFIG. 2B, where the content is now in a right to left direction. For example, inFIG. 2B, the time of 7:07 AM is still shown, but is now in a mirror-image format. The original content which would normally be read in a left to right direction in the English language is now presented in a right to left direction. In this example, when the content is reversed in thedisplay221 as seen inFIG. 2B (e.g., in a mirror-image format), the display can be clearly read as 7:07 AM when viewed as a reflected image from a mirrored surface. This configuration is helpful to a user when thedisplay221 is in a rear-facing direction, such as when the user is brushing in front of a mirror (e.g. a front facing toward a mirror). In this manner, the user can readily determine the information presented on the display by viewing the reflective image in the mirror without having to momentarily stop brushing. Nevertheless, upon depression/engagement oforientation actuator225, the content in mirror-image format may change to that shown inFIG. 2A for forward face viewing by the user. While the discussion refers to the English language reading direction, the inventive aspects may be practiced in other languages as well, such as Spanish, French, Chinese, Arabic, Russian, French, etc.
• FIGS. 3A-3B illustrate another construction of atoothbrush300 in which the content relates to a stroke counter. InFIG. 3A,toothbrush300 includes adisplay321 disposed in the body or aneck portion305 of thetoothbrush300. The stroke counter mode of operation may be obtained by depression of one of the actuators. In this example, upon engagement ofactuator323, a user may switch from the time of day operation mode to the stroke counter operation. In the stroke counter mode, the number of brush strokes is tracked and counted by thetoothbrush300. By usingactuators327, a user may set a target number of strokes to be counted before an alarm (e.g., a sound or visible notification) is activated and/or the user may set a number of strokes to be counted down before an alarm is deactivated. Different stroke counts may be implemented at one time. For example, a user may track the total number of brush strokes, while also independently tracking the number of strokes in a particular area of his or her mouth. The information may be stored separately to allow a user to monitor his or her brushing habits.
• Similar to the mirror-image format of content inFIG. 2B,FIG. 3B illustrates a mirror-image format of the stroke count. Upon depression or other engagement ofactuator325 inFIG. 3A, the content ofdisplay321 may be reversed to show the stroke count, i.e., “17 strokes”. A user can readily read at any time how many strokes have been counted or how many strokes remain to be counted via the reflection of thedisplay321 in a mirrored surface. Any number of different configurations of stroke counting or countdown may be implemented in accordance with aspects of the illustrative embodiments.
• FIGS. 4A-4B illustrate another construction of atoothbrush400 in which the content is a count up or countdown timer. InFIG. 4A,toothbrush400 includes adisplay421 disposed in body or aneck portion405 of thetoothbrush400. The timer mode of operation may be obtained by depression of one of the actuators. In this example, upon depression ofactuator423, a user may switch from the stroke counter mode of operation to the timer mode of operation. In the timer mode of operation, thetoothbrush400 may act as a device to count up to a certain time or to count down from a certain time. This may be useful to individuals who strive to brush their teeth for the recommended total of at least two minutes, twice a day. In one example, an alarm may be configured to alert the user upon the timer reaching the specified end time.
• Similar to the mirror-image format of the content inFIGS. 2B and 3B,FIG. 4B illustrates a mirror-image format of the elapsed or remaining brushing time. Upon depression ofactuator425 inFIG. 4A, the content to display421 may be reversed to show 1:47 in mirror-image format. A user can readily determine how much time remains, whether counting down to zero or counting up to a particular end time, by viewing thedisplay421 as a reflection in a mirror. Any number of different configurations of counting up or counting down may be implemented in accordance with aspects of the illustrative embodiments.
• FIG. 5 illustrates another construction of atoothbrush500. InFIG. 5,toothbrush500 includes adisplay521 disposed in body or aneck portion505 of thetoothbrush500. In this example,display521 includes a backlight feature. For example, OLED technology could be used indisplay521 oftoothbrush500. With this feature, thetoothbrush500 may act as a nightlight during certain configurable times of day. As shown inFIG. 5, the backlight ofdisplay521 is illuminated at 2:07 AM. A user may use the illuminated light from the backlight of thedisplay521 to see around a darkened room for orientation and may be able to tell the time at the same time. This feature may be implemented by depression or other engagement of one of the actuators.
• In this example, a user may set the time period in which he/she desires the backlight to be in operation. For example, utilizingactuators527, a user may set the backlight to operate between one or more predefined time periods, such as 11:00 PM to 6:00 AM, although it should be understood that any of a number of other settings may be configured. In an alternative embodiment, a light detection sensor may be included within thetoothbrush500 to detect the ambient light around thetoothbrush500. In one example, the sensor may be a photodiode or photoconductive sensor enabled read a light level of 0 to 100 Foot-Candles (FC). Upon falling below a particular lighting threshold, thetoothbrush500 may then automatically initiate operation of the backlight on thedisplay521. The body of thetoothbrush500 may have a small window (e.g., clear plastic) which receives ambient light for the sensor. For example, the window may be part ofdisplay521 and the sensor may be provided in combination with thedisplay521.
• FIGS. 6A-6B illustrate another construction of atoothbrush600. As shown inFIG. 6A,toothbrush600 includes adisplay621 disposed in a body or in aneck portion605 of thetoothbrush600. In this example, the user may operate thetoothbrush600 in a time of day or clock reading mode of operation. Such may be the case where a user has depressed one or more ofactuators623,625, and/or627. As shown, the content of thedisplay621 is in a mirror-image format so the user may readily read the content as a reflection in a mirror. Referring toFIGS. 1A and 6A, the content is shown in which the graphic characters are presented along a longitudinal axis (a-a shown inFIG. 1A) of thedisplay621 and of thetoothbrush600. The toothbrush may be rotated clockwise or counter-clockwise about an axis b-b transverse to the longitudinal axis a-a of the toothbrush as shown inFIG. 1A. If the user rotates the toothbrush counter-clockwise 180° about axis b-b, the content ofdisplay621 would be displayed upside down.
• Referring toFIG. 6B, whentoothbrush600 is rotated 180° counter-clockwise, the content ofdisplay621 also flips or rotates to maintain the mirror-image format. Therefore, when looking at the reflection of thedisplay621 in a mirror, a user may properly see the time or other information. Any of a number of different mechanisms may be utilized to track the position of the display and/or toothbrush. For example, a sensor, such as a gyroscopic sensor or an accelerometer, built into thetoothbrush600 may detect the relative change in position of thetoothbrush600 from a first state, to a second state, in which thetoothbrush600 has been rotated 180°. As should be understood, although described with respect to the time of day mode of operation, the description with respect toFIGS. 6A and 6B may be implemented with respect to other modes of operation of the toothbrush.
• Referring toFIG. 6B, in an alternative construction, an accelerometer utilizing Micro-Electronic Mechanical System (MEMS) technology could be embedded in the toothbrush during molding, or could take the form of a sticker applied on the toothbrush body. A MEMS accelerometer device generates a signal representative of acceleration in a particular direction (“measurement direction”). The MEMS accelerometer detects gravitational force when not in motion. Accordingly, different altitudes of the MEMS accelerometer device with respect to the vertical can result in different readings which depend on the coincidence of the measurement direction with the direction of the gravitation pull. The detection of different altitudes may be used to detect the position of the toothbrush and the relative change in position from a first state or second state as discussed above.
• As described herein with respect toFIG. 7, acontrol system707 of thetoothbrush100 may be included to provide content or image data for thedisplay121.FIG. 7 illustrates a block diagram of components in one or more constructions oftoothbrush100. One or more of the components shown inFIG. 7 may be included within one or more printed circuit boards.Toothbrush700 includescontrol system707, a power supply operatively connected to one or more elements of thesystem707; and adisplay711 operatively connected to one or more components of thesystem707.Power supply709 may include one or more power components, such as a battery or a wired connection to a power source, providing for electrical power to electrical components of thetoothbrush700.
• Clock circuitry701 may include hardware, software, computer-readable instructions, or other components to allow for tracking of the time of day and/or time of year and for outputting such information in a suitable form for use by thedisplay711. As such,clock circuitry701 may include a crystal oscillator for counting seconds.Clock circuitry701 may be configured to perform the functions for processing signal(s) performing computer-readable instructions, and reading from and writing to a memory (not shown) associated with thetoothbrush700 operating in a clock mode.
• Timer circuitry703 may include hardware, software, computer-readable instructions, or other components to allow for counting up or counting down time and for outputting such information in suitable form for use by thedisplay711.Timer circuitry703 may include a crystal oscillator for counting seconds, minutes, etc.Timer circuitry703 may be configured to perform the functions for processing signal(s) performing computer-readable instructions, and reading from and writing to a memory (not shown) associated with thetoothbrush700 operating in a timer mode.
• Counter circuitry705 may include any hardware, software, computer-readable instructions, or other components to allow for counting up or counting down strokes of thetoothbrush700 and for outputting such information in suitable form for use by thedisplay711. As such,counter circuitry705 may include a sensor for detecting movement of the toothbrush.Counter circuitry705 may be configured to perform the functions for processing signal(s), performing computer-readable instructions, and reading from and writing to a memory (not shown) associated with thetoothbrush700 operating in a stroke counter mode.
• Orientation circuitry713 may include hardware, software, computer-readable instructions, or other components to allow the content ofdisplay711 to be selectively presented in a mirror-image format or forward-facing format, and for outputting such information in suitable form for use by thedisplay711. For example,orientation circuitry713 may receive and process an input signal to causedisplay711 and/orclock circuitry component701,timer circuitry component703, and/orcounter circuitry component705 to display an image ondisplay711.Orientation circuitry713 may be configured to perform the functions for processing signal(s) performing computer-readable instructions, and reading from and writing to a memory (not shown) associated with thetoothbrush700 switching between a reversed content display and a non-reversed content display.
• Mode selection circuitry715 may include electrical circuitry, software, computer-readable instructions, or other components to allow for changing the mode of operation of thetoothbrush700. For example,mode selection circuitry715 may receive and process an input signal to change the mode of operation from time of day mode of operation to timer mode of operation.Mode selection circuitry715 may be configured to perform the functions for processing signal(s) performing computer-readable instructions, and reading from and writing to a memory (not shown) associated with thetoothbrush700 switching between different modes of operation.
• Settingcircuitry717 may include electrical circuitry, software, computer-readable instructions, or other components to allow for setting one or more features of thetoothbrush700. For example, settingcircuitry717 may receive and process an input signal to set one or more features, such as the time of day, the month or year, the time to count up to, the time to count down from, the strokes to count up to, and/or the strokes to count down from. Settingcircuitry component717 is configured to perform the functions for processing signal(s) performing computer-readable instructions, and reading from and writing to a memory (not shown) associated with setting features of thetoothbrush700.
• The inventive aspects may be practiced for a manual toothbrush or a powered toothbrush. While the various features of thetoothbrush100 work together to achieve the advantages previously described, it is recognized that individual features and sub-combinations of these features can be used to obtain some of the aforementioned advantages without the necessity to adopt all of these features.
• It is understood that designations such as “first” and “second” are for illustrative purposes and can be interchanged. Further, a care region, such as a personal care region or oral care region, may engage a particular anatomical portion or region of an organism, such as a human body or mammal. The engagement may be physical abutment of the care region of the implement or movement a fluid, such as air or liquid, coming from the care region. In another example, the care region may have light coming from the region which contacts the user's anatomical portion. In one example, an oral care region may have cleaning elements or may direct a form of ultraviolet light to clean/whiten the teeth of a user. In a hair dyer example (e.g., a form of a personal care implement), a personal care region may include a comb or nozzle for directing forced air—heated or unheated onto a user's head, such as hair.
• While the invention has been described with respect to specific examples including presently preferred modes of carrying out the invention, those skilled in the art will appreciate that there are numerous variations and permutations of the above described systems and techniques. Thus, the spirit and scope of the invention should be construed broadly as set forth in the appended claims.

Claims (11)

I claim:

1. A personal care implement defining a longitudinal axis and comprising:

a head;

a handle coupled to the head by a neck portion;

a display configured to present visual content for viewing by a user;

a sensor arranged on the personal care implement and configured to detect a relative change in orientation of the personal care implement about an axis normal to the longitudinal axis; and

a control system operatively connected to the sensor and the display, wherein the control system is configured to receive and process signals from the sensor indicative of the relative change in orientation of the personal care implement, and wherein the control system is configured to change the visual content on the display depending on the detected orientation of the personal care implement.

2. The personal care implement ofclaim 1, wherein the sensor is selected from the group consisting of an accelerometer, a gyroscopic sensor, a MEMS accelerometer device, and a combination thereof.

3. The personal care implement ofclaim 1, wherein the personal care implement comprises a toothbrush and the head includes tooth cleaning elements extending therefrom in a first direction.

4. The personal care implement ofclaim 3, wherein the display is oriented in a second direction opposed to the first direction.

5. The personal care implement ofclaim 3, wherein the display is included within the neck portion of the toothbrush.

6. The personal care implement ofclaim 3, further comprising a second sensor configured to track a number of brushing strokes of the toothbrush, wherein the second sensor is operatively connected to the control system, wherein the control system is configured to receive and process signals from the second sensor and output to the display a counted or remaining number of brushing strokes during a brushing session.

7. The personal care implement ofclaim 6, wherein the control system actuates an alarm upon the number of brushing strokes reaching a predetermined threshold.

8. The personal care implement ofclaim 1, further comprising an actuator configured to change a mode of operation of the display.

9. The personal care implement ofclaim 8, wherein the mode of operation of the display comprises at least two of a clock mode, a timer mode, and a counter mode.

10. The personal care implement ofclaim 9, wherein when the mode of operation of the display is in the clock mode, a time of day is displayed on the display, wherein when the mode of operation of the display is in the timer mode, a timer is displayed on the display, and wherein when the mode of operation of the display is in the counter mode, a stroke counter is displayed on the display.

11. The personal care implement ofclaim 8, further comprising an alarm associated with the change of the mode of operation of the display.

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