Patent No. US7225000 (titled "Communication apparatus") on Mar 1, 2002. The application was issued on May 29, 2007.
’000 is related to the field of mobile communication devices, specifically focusing on user notification systems for foldable or slidable handsets. In traditional form factors where a display is concealed in a closed state, users often remain unaware of missed calls, messages, or alarms until they fully open the device and inspect the screen. This background context highlights a need for a more immediate, non-visual feedback mechanism that alerts the user to pending notifications the moment they begin to interact with the device hardware.
The underlying idea behind ’000 is to utilize the mechanical action of opening a device as a trigger for haptic or acoustic feedback regarding past events. Rather than requiring the user to complete the opening motion and then visually scan a UI, the invention recognizes the transition from a closed to an open state as a query for status. By linking the mechanical state transition to a notification controller, the device can proactively push alerts to the user through tactile or auditory channels at the very start of the interaction.
The claims of ’000 focus on a control system comprising a first detector for sensing the separation of device portions, a second detector for identifying missed events, and a controller that bridges the two. The independent claims specifically cover the logic of determining if a separation event occurs subsequent to a missed event and, in response, triggering a vibrator or sound-emitting unit. This architecture ensures that the notification is tied specifically to the physical act of opening the device, rather than just the occurrence of the event itself.
In practice, the invention works by monitoring a physical switch or sensor that tracks the relative position of the device's two main housings. When a user begins to flip open or slide the phone, the controller checks a memory buffer for any unread data or missed alerts. If such an event exists, the device immediately initiates a distinctive vibration pattern or sound. This allows a user to receive a status update through their sense of touch or hearing even before the internal display is fully visible or the device is removed from a pocket.
This approach differentiates itself from prior art by eliminating the need for external secondary displays or dedicated notification LEDs on the outer casing. By repurposing the existing chassis state sensor—typically used only for backlight control or call answering—the invention provides a rich feedback loop without increasing the component count or manufacturing cost. Furthermore, it allows for differentiated feedback where specific vibration rhythms or tones correspond to different types of missed events, enabling eyes-free information retrieval.
In the early 2000s when ’000 was filed, mobile communication devices were increasingly adopting multi-part mechanical form factors, such as foldable or sliding architectures, to protect primary displays and input interfaces. At a time when status information was typically implemented using internal liquid crystal displays or light-emitting diodes, users commonly relied on visual inspection of these internal components to identify missed events like calls or messages. When hardware constraints made the addition of external secondary displays or dedicated external notification keys non-trivial due to cost, power consumption, and physical volume limitations, the state of the art required a user to fully transition the device to an open state and visually scan the interface to retrieve missed event data.
The disclosed invention represents a technical advancement in the integration of mechanical state sensing with event notification logic. By utilizing a detector that monitors the physical separation or movement of coupled housing portions, the system triggers a tactile or audible notification immediately upon the initiation of an opening action. This architectural shift allows the device to communicate the existence of missed events through non-visual channels—such as vibration or sound—during the mechanical transition itself. This solution overcomes the technical constraint of requiring a fully opened state and visual focus to confirm missed activity, enabling a more efficient data retrieval process without the need for additional external hardware components like secondary displays or auxiliary buttons.
The patent contains a total of 32 claims, with claims 1, 9, 15, 20, 25, and 29 serving as the independent claims. These independent claims focus on a communication apparatus, method, and controller designed to detect the physical separation of two device portions and, upon determining this action occurred after a missed event, trigger a vibrator or sound-emitting unit to alert the user. The dependent claims serve to further define the specific types of missed events, such as calls, messages, or alarms, and provide additional details regarding the mechanical configuration of the device and the specific patterns used for the alerts.
Definitions of key terms used in the patent claims.
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