Communication apparatus

Patent No. US7225000 (titled "Communication apparatus") on Mar 1, 2002. The application was issued on May 29, 2007.

What is this patent about?

’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.

How does this patent fit in bigger picture?

Technical Landscape

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.

Prosecution Position

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.

Claims

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.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
First portion
(Claim 1, Claim 9, Claim 15, Claim 20, Claim 25, Claim 29)
One or more aspects of the present invention are directed to a foldable, slideable, and/or otherwise partially or fully separable communication apparatus having a first portion and a second portion. The first and second portions may be foldably, slideably, and/or otherwise moveably coupled with one another. When the first and second portions are fully or partially separated from one another, a first detector may detect the separation.One of at least two moveably coupled structural components of a communication apparatus housing that can be moved relative to another component.
Missed event
(Claim 1, Claim 9, Claim 15, Claim 20, Claim 25, Claim 29)
When the user of the cellular phone does not answer the incoming call or otherwise respond to the notification, the cellular phone memorizes the missed call or unopened message. A second detector may detect an event, such as a missed event occurring in the apparatus (e.g., a missed incoming call, a missed text message or a missed alarm). The apparatus notifies the user of the detected event responsive to the first detector detecting the separation.An occurrence in the communication apparatus, such as an incoming call, text message, or alarm, that was not responded to or acknowledged by the user at the time it occurred.
Operation to at least partially separate
(Claim 1, Claim 9, Claim 15, Claim 20, Claim 25, Claim 29)
The first and second portions may be foldably, slideably, and/or otherwise moveably coupled with one another. When the first and second portions are fully or partially separated from one another, a first detector may detect the separation. A communication apparatus in accordance with these aspects may utilize the existing switch that detects whether the apparatus is opened or not.A physical movement of the apparatus components, such as opening a foldable case or sliding apart coupled portions, which triggers a detection mechanism.
Second portion
(Claim 1, Claim 9, Claim 15, Claim 20, Claim 25, Claim 29)
One or more aspects of the present invention are directed to a foldable, slideable, and/or otherwise partially or fully separable communication apparatus having a first portion and a second portion. The first and second portions may be foldably, slideably, and/or otherwise moveably coupled with one another. When the first and second portions are fully or partially separated from one another, a first detector may detect the separation.A structural component of the apparatus housing moveably coupled to the first portion, such that their separation is detectable by the apparatus.
Sound-emitting unit
(Claim 9, Claim 20, Claim 29)
The controller may cause such a notification by activating a vibrator, speaker, piezoelectric element, and/or other similar device that can produce an output noticeable by the user. Preferably, the notification would be audible or tactile, but it could be in any form such as a visible notification. One or more further aspects allow for a communication apparatus to not have additional lights, speakers, or other user notification outputs other than those in conventional communication apparatuses.An output component, such as a speaker or piezoelectric element, configured to provide an audible notification to the user.

Litigation Cases New

US Latest litigation cases involving this patent.

Case NumberFiling DateTitle
2:25-cv-00748Jul 28, 2025Netlist, Inc. V. Samsung Electronics Co., Ltd.

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US7225000

Application Number
US10085064A
Filing Date
Mar 1, 2002
Publication Date
May 29, 2007
External Links
Slate, USPTO , Google Patents