Patent Application
20100137038
1. Field of the Invention
This invention generally relates to headsets and, more particularly, to a headset charging system, apparatus, and method.
2. Description of Related Art
Communication headsets are used in numerous applications and are particularly effective for telephone operators, radio operators, aircraft personnel, and for any user for whom it is desirable to have hands free operation of communication systems. Accordingly, a wide variety of conventional headsets are available with different shapes and designs, including over-the-head type headsets, over-the-ear type headsets, and in-the-ear type headsets. Furthermore, headsets may be adapted for use with a variety of devices, included corded and cordless telephones, soft phones, cellular phones, PDAs, and the like.
Wireless headsets and other portable communications devices are often battery powered such that a user can use the wireless headset or other such device without being directly connected to larger power sources such as an AC outlet or automobile battery. This allows wireless headset users flexibility and convenience to move about without being tied to a power cord. Wireless headset batteries are generally rechargeable so that the batteries can be recharged and need not be discarded after single use.
In the prior art, devices employing rechargeable batteries typically have charging contacts so that charging current power can be supplied to recharge the batteries without removing the batteries from the device. In one typical setup, the portable device is inserted into a base charger which has contacts that correspond to and couple with the contacts on the portable device. For example, such a setup is used with remote handset phones used in the home. The base charger is connected to a power source, and supplies charging current through the coupled contacts to recharge the batteries located within the device.
Wireless headsets may be also be charged using a docking station such as a desktop charger, or other combined storage and charging mechanism to facilitate the charging of the wireless headset. However, a single charging base has not been available to charge a variety of headsets having different form factors and thus different chargers have been generally required to charge different headsets. Furthermore, since each charging base has been specific to a headset, packaging and identification of a headset product and its charger have been constrained and inflexible.
Therefore, there is a need in the art for a headset charging system, apparatus, and method that is simple to use, cost-effective, provides flexibility, and/or provides for efficiencies in packaging.
In accordance with the present invention, a headset charging base, a headset charging system, and a method of charging various headsets are disclosed.
In one embodiment of the invention, a headset charging base includes a power source interface, a docking cradle interface configured to interface with one of a plurality of interchangeable docking cradles having different form factors for receiving different headsets, and a housing enclosing an electrical connection between the power source interface and the docking cradle interface.
In another embodiment of the invention, a headset charging system includes a headset charging base as described above, a power source operably coupled to the power source interface, and an interchangeable docking cradle operably coupled to the docking cradle interface.
In yet another embodiment, a method of charging headsets includes providing a headset charging base as described above, coupling a power source to the power source interface, coupling a first docking cradle to the docking cradle interface, docking a first headset in the first docking cradle to charge the first headset, interchanging the first docking cradle with a second docking cradle, and docking a second headset in the second docking cradle to charge the second headset.
In yet another embodiment, a method of packaging headsets comprises providing a plurality of common charging bases from a first location, with each charging base including a power source interface, a docking cradle interface configured to interface with one of a plurality of interchangeable docking cradles having different form factors, and a housing enclosing an electrical connection between the power source interface and the docking cradle interface. The method further includes providing a plurality of docking cradles with different form factors for receiving different headsets, and packaging a common charging base, a specified docking cradle, and a corresponding headset at a second location different from the first location.
Advantageously, the present invention provides a single charging base that can be used to charge various headsets having various form factors in a cost-effective and flexible manner. Furthermore, the present invention allows for cost efficiencies in shipping and packaging of a headset system.
These and other features and advantages of the present invention will be more readily apparent from the detailed description of the embodiments set forth below taken in conjunction with the accompanying drawings.
Embodiments of the present invention and their advantages are best understood by referring to the detailed description that follows. It should be appreciated that like reference numerals in different figures indicate similar or identical items. It should also be appreciated that the figures may not be necessarily drawn to scale.
In accordance with the present invention, systems, apparatus, and methods are disclosed for utilizing a single charging base with interchangeable docking cradles to charge different headsets, allowing for advantageous flexibility in use and efficiencies in packaging.
Referring now to
Charging base 104 includes a power source interface 103 that is operably couplable to power source 102, and a docking cradle interface 105 that is operably couplable to an interchangeable docking cradle, such as docking cradles 106a or 106b. Docking cradle interface 105 may include an electrical wire and a connector at a free end of the wire that can operably mate with an electrical contact of the docking cradle, such as electrical contacts 107 or 113.
It is noted that various electrical contact means and methods may be used between the components of the headset charging system (e.g., between the charging base and the docking cradle or between the docking cradle and the headset), such as contact strips, pogo pins and apertures, plugs and sockets, and so on, as more fully disclosed in commonly assigned U.S. Pat. No. 7,075,270, which is incorporated by reference herein in its entirety for all purposes.
In one example, power source interface 103 is an electrical connector operably couplable to one or more of various power sources 102, such as an alternating current adapter, a direct current adapter, a battery (e.g., alkaline, NiCad, or Lithium batteries in AA or AAA form factors, or various other suitable types of batteries), or a solar cell. Power source interface 103 may also include connectors for connection to a cord that is connected to a main AC power supply of the type utilized with a common wall outlet, and/or an AC/DC power converter which converts an external power supply to a standard DC voltage which is usable by the charging base for charging a battery therein.
Power source interface 103 is electrically coupled to docking cradle interface 105, for example by a wire or other electrical connection enclosed within a housing of charging base 104. The housing is preferably made of a lightweight organic polymer, but can be comprised of any suitable material. An underside portion of the housing provides support and a non-scratching material for the bottom of the charging base, in one example. Thus, power from power source 102 is transferred through power source interface 103, docking cradle interface 105, contacts in the docking cradle, and mating contacts in a docked headset to charge the headset.
Charging base 104 may further include components typical of battery charging devices, such as circuitry or processors for controlling the supply of charging current to an inserted device based on the battery status, and indicators for identifying the charging status of the headset battery. Charging circuitry and associated components may be mounted on a printed circuit board (PCB) disposed within the charging base. The charging system 100 may also include various features such as a vibrate ring feature, a caller ID display, and/or a visual ring indicator. Each feature may be directly integrated in the headset charging base 104, another component of the charging system, and/or on the headset itself but is accessible and/or visible while the headset is stored on the charging base. In other embodiments, charging base 104 may include interfaces for a RJ-11 connector or a 2-3.5 mm plug, which may be used to operably connect the charging base and an associated headset to an audio source, such as a telephone handset, cellular telephone, or a computer.
The docking cradle is couplable to a front wall of the charging base housing, in one example, and includes an electrical contact 107 or 113 for electrical communication with charging base 104, an electrical contact 109 or 115 for electrical communication with a headset, and a cavity or well for physically receiving a headset. In one example, each of the docking cradle electrical contacts 107 or 113 can also include an electrical wire and a connector at a free end of the wire that is connectable with the connector of the docking cradle interface 105. Various structures may be utilized for electrical contacts 109 and 115 as noted above, such as contact strips, pogo pins and apertures, plugs and sockets, and so on, as more fully disclosed in commonly assigned U.S. Pat. No. 7,075,270, which has been previously incorporated by reference herein in its entirety for all purposes.
The cradle well properly guides the headset such that conductive contacts 111 or 117 disposed on the headset are properly aligned with the electrical contacts 109 or 115 in the docking cradle. Thus, the docking cradle serves as an electrical and mechanical interface between the charging base and the headset, and the headset is able to be charged by charging base 104 when docked within a respective docking cradle. In one example, the docking cradle may be inclined at approximately 5 to 10 degrees from vertical allowing for convenient insertion of the headset, although other angles or no angle may be utilized.
It is noted that various docking cradles may be configured to receive various types, shapes and/or configurations of headsets and that headsets shown and described below are merely examples suitable for use with the headset charging system, apparatus, and methods of the present invention.
Referring now to
Different docking cradles and their respective headsets that are mountable on the docking cradles will now be illustrated and described in accordance with embodiments of the present invention.
When headset 308 is mounted on docking cradle 306, contact strips 309 operably mate with contact strips 311 of headset 308, thereby electrically coupling headset 308 to charging base 204. In a further example, docking cradle 306 includes a cavity or well portion that mechanically receives a portion of headset 308 when the headset is docked. In this embodiment, headset 308 is an over-the-ear type of headset and includes an earloop 320, a microphone 324 to enable two-way voice communication by the user, and a speaker housing 322 that houses an internal speaker, which in one example is an electro-acoustic speaker that receives audio signals from an audio signal source and may comprise a known type of electromagnetic, piezoelectric, or electrostatic type of driving element, or a combination thereof, or even some other form of driving element, for generating sound waves from the output face of the speaker. It is noted however that various applicable speakers may be used. Headset 308 is a wireless headset that operates following Bluetooth, Wifi, or other wireless protocol. The illustrative headset shown and described is also a monaural headset having a single audio receiver for placement near one ear and an earloop configured to fit around the ear to secure the receiver in place. However, it is to be understood that various docking cradles may be configured to receive various other types, shapes and/or configurations of headsets and that the monaural headset shown and the other headsets shown and described below are merely examples suitable for use with the headset charging system, apparatus, and methods of the present invention.
Referring now to
Advantageously, the present invention provides for a charging apparatus and system that is cost-effective and flexible in use. Furthermore, such postponement of system packaging until made specific to order allows for efficiencies in shipping, labor, cost, and/or time.
The above-described embodiments of the present invention are merely meant to be illustrative and not limiting. It will thus be obvious to those skilled in the art that various changes and modifications may be made without departing from this invention in its broader aspects. For example, the docking cradles may be mechanically and electrically coupled to the charging base by various means and methods besides electrical wire connectors, including but not limited to contacts strips and pogo pins/recesses, and the docking cradle interface may include more than one means of electrical connection to a docked headset. Furthermore, the headset may be electrically coupled to the docking cradle by various means and methods besides contact strips and pogo pins/recesses. Therefore, the appended claims encompass all such changes and modifications as falling within the true spirit and scope of this invention.
