Patent Application
20060266841
1. Field of the Invention
The present invention relates to handheld computing devices. More particularly, it relates to handheld computing devices with a modular keypad and battery pack.
2. Descrption of Related Art
Within the retail market there are many uses for handheld devices. Often a single organization has need for several different handheld devices. Different applications do not require different displays or processors. However, the auxiliary functionality and battery means may vary significantly depending on the particular use of the handheld. The requirement of different auxiliary functionality often dictates the minimum keypad needs or size. Keypad size, battery capacity and auxiliary functionality all directly affect the size of the handheld. Some applications need large, full functioning handhelds while ruggedized PDAs are sufficient for other applications. By utilizing a handheld that has a console module and a keypad/battery module, users have the flexibility to customize the handheld to a particular application, while only managing one platform one operating system.
The present invention is a modular handheld device. The modular handheld comprises a console and a keypad/battery module that acts with the console. The handheld can have other module parts. For example different modular handles can be attached to the handheld.
The user or user organization has the option to select from one or more smaller keypad/battery battery modules and/or one or more larger keypad/battery modules with more battery capacity. The appropriate keypad/battery module is selected based on the needs of the particular user or application. This allows an organization to have multiple handheld configurations which utilize the same core computing engine, thus greatly reducing the number of IT platforms that need to be supported. By combining the display, processor, scan engines and radios into a console and separating the keypad and batteries into a “personality module” many different handhelds can be customized from a single console.
Keypads and batteries are high wear items. By modulizing these items they can be easily replaced by the end user. Further, as a new consoles are developed with a faster processor, end users can replace the console portion without the cost of replacing the entire system.
FIGS. 3A-C our embodiments of the keypad/battery module.
The inventive handheld computer 10 has an interchangeable keypad/battery module 20. The handheld comprises a console 30 and a removable keypad/battery module 20. Optionally, the handheld includes a handle module 40. The console 30 comprises a housing 32 and one or more of the following display 34, processor, scanner, printer, radio, interrogator, and wireless data transfer device. Console 30 further comprises a locking base 36. The locking base 36 is adapted to mate with the locking element 28 of the module 20. Console 30 optionally comprises a charge element and handle mounting element.
The keypad/battery module 20 comprises a module housing 22, a keypad 24 with one or more buttons 26, power supply and a locking element 28 adapted to mate with the console 30. The buttons 26 can be integral with the face of the keypad 24 or may be made of a different material. The buttons 26 can be flush with the face of the keypad 24, protrude from the face of the keypad 24, or be depressions in the face of the keypad 24. Optionally, the keypad/battery module 20 comprises a charging element.
Locking element 28 is preferably a sliding latch 50 that mates with the console to prevent separation of the keypad/battery module 20 from the console 30 if the handheld 10 is dropped or subjected to other extreme conditions. The sliding latch 50 comprises at least one rib 52 that mates with at least one channel on said console 30. Alternatively, a channel in the locking element 28 can mate with a rib on the console 30. The sliding latch 50 optionally has a button 56 or other mechanism to release the latch if the user wants to replace the keypad battery module 20. Alternatively, locking element 28 can be a side mounted push button release mounted on the side of the console or module 20 or locking element can be rear mounted push button release mounted on the rear of the locking element 28. Optionally threaded inserts 58 can be provided on the module which are adapted to align with threaded inserts on the console 30. A screw 62 is mated with the threaded inserts.
The electrical interface between the module and the console is preferably a series of spring contacts 64, such as pogo pins, which create a reliable electrical connection 54. Optionally, a electrical connector between the console in module can be a standard USB interface. There is a seal between the module 20 and console 30. The seal can be any type of known seal. It's preferable to seal the module the console and the connection between them. One the embodiment of the seal is a foam gasket surrounding a locking base 28 that is compressed when the module 20 is inserted and exposed with the module 20 is removed.
The housing 22 of the module is preferably one-piece housing having a cavity. Preferably, the housing is made of magnesium, which is lightweight and has high strength.
In is preferable that any modules 20 and/or consoles 30 that require charging and/or docking will share identical charging/docking elements. This is preferred, so that any handheld can use the same peripheral.
A user will have an IT support structure, and one or more consoles 30. For each console 30, the user will customize the console 30 with a keypad/battery modules 20 selected for the desired application. The appropriate keypad/battery module 20 is connected to the console 30 to create a customized handheld. The appropriate keypad/battery module 20 is selected based on for example, the individual user, the application(s), the data entry/retrieval/transfer needs, and the battery life requirements. Some applications will require keypads 24 with a plurality of buttons 26 and others will require fewer buttons 26. The user will have other customized handheld devices with different keypad/battery modules 20 to be used with different applications. Each of the user's customized handheld 20 is operable with the same IT platform, charging devices, and other peripherals.
In an alternative embodiment, the user selects the handheld 10 comprising interchangeable consoles 30 as well as interchangeable keypad/battery modules 20. An appropriate console 30 may be selected based on the desired application. For example, the for some applications it maybe desirable to have a scanner and a printer. For other applications, a printer may not be needed. For others, both a scanner and an RFID interrogator may be needed.
