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An Application that Allows a Mobile Device User to Locate Another Mobile Device User if Both Users Have GPS Support

IP.com Disclosure Number: IPCOM000130646D
Publication Date: 2005-Oct-31
Document File: 1 page(s) / 38K

Publishing Venue

The IP.com Prior Art Database

Abstract

Multiple users of mobile devices may have a difficult time locating each other in a crowded area without useful landmarks. For examples, coworkers attending a conference, a lecture or a concert may find it difficult to find each other in the crowd. One proposed solution is to implement a request location application on the mobile device. On the mobile device, the user may select the "Request location" option. This menu command would be available for a user highlighted in the user’s Contacts list, an e-mail message, or from the user’s message list. The following is a list of steps to implement this: 1. User1 (U1) invokes "Request location" for User2 (U2). The following info may be requested: • initial location (L1), of U1 is stored. • U1 is prompted by mobile device to step forward. Prompt is displayed until U1 has moved far enough for GPS location to change. The second location (L2) is stored. • (L2 - L1) is the direction vector that U1 is facing. 2. U1's mobile device sends request to U2's mobile device. 3. If U2's mobile device does not support GPS, a refusal message is sent to U1. 4. U2 is prompted "Send your GPS location to [U1]? Yes/No". If U2 selects No, a refusal message is sent to U1. However, if U2 picks Yes, the following steps occur: • U2's revised position (L3) is sent to U1. • (L3 - L2) is distance vector between two users. A compass is displayed on U1's mobile device, where north is the direction U1 is facing and an arrow indicates direction to follow to reach U2's last known position. The distance between U1 and U2's last known position could also be displayed. As U1 moves, the display could update the direction and distance to U2's last known location. The request and response could be transmitted using P2P messaging, SMS or over email. The same task could be accomplished by two users with GPS mobile devices and phones that support SMS or voice and one user has a compass.

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MOBILE DEVICE LOCATOR

An Application that Allows a Mobile Device User to Locate Another

Mobile

Device User if Both Users Have GPS Support

Disclosed Anonymously

Multiple users of mobile devices may have a difficult time locating each other in a crowded area without useful landmarks. For examples, coworkers attending a conference, a lecture or a concert may find it difficult to find each other in the crowd.

One proposed solution is to implement a request location application on the mobile device. On the mobile device, the user may select the "Request location" option. This menu command would be available for a user highlighted in the user’s Contacts list, an e-mail message, or from the user’s message list.

The following is a list of steps to implement this:


1. User1 (U1) invokes "Request location" for User2 (U2). The following info may be requested:

·         initial location (L1), of U1 is stored.

·         U1 is prompted by mobile device to step forward.  Prompt is displayed until U1 has moved far enough for GPS location to change.  The second location (L2) is stored.

·         (L2 - L1) is the direction vector that U1 is facing.

2. U1's mobile device sends request to U2's mobile device.

3. If U2's mobile device does not support GPS, a refusal message is sent to U1.

4. U2 is prompted "Send your GPS location to [U1]? Yes/No". If U2 selects No, a refusal message is sent to U1. However, if U2 picks Yes, the following steps occur:

·        U2's revised position (L3) is sent to U1.

·        (L3 - L2) is di...