Radio telephone
DCFirst Claim
1. A radio handset comprising a housing having a key pad including a plurality of keys mounted on a main body and an extending portion mounted for longitudinal slidable movement between a first position in which the plurality of keys are concealed and a second position in which the plurality of keys are exposed, and a processor operable to perform respective predetermined functions responsive to respective sequences of actuations of the keys, the processor being operable to perform the predetermined functions corresponding to the respective sequences of actuations of exposed ones of the keys, which are concealable by the extending portion, for a range of positions of the extending portion, wherein the plurality of keys include a first group of alphanumeric keys and a second group of control keys, and wherein the processor is operable to perform the predetermined function corresponding to at least one of the control keys for all positions of the extending portion including when the at least one control key is concealed by the extending portion, wherein the processor is operable to place the handset in an off-hook condition in response to the movement of the extending portion from the first position regardless of whether or not the extending portion has been moved to the second position.
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Litigations
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Accused Products
Abstract
A radio telephone with a sliding cover that moves between positions concealing and revealing a plurality of keys. Predetermined functions are performed in response to respective sequences of actuations of the plurality of keys. The exposed keys are utilizable for a range of positions of the slide.
60 Citations
23 Claims
- 1. A radio handset comprising a housing having a key pad including a plurality of keys mounted on a main body and an extending portion mounted for longitudinal slidable movement between a first position in which the plurality of keys are concealed and a second position in which the plurality of keys are exposed, and a processor operable to perform respective predetermined functions responsive to respective sequences of actuations of the keys, the processor being operable to perform the predetermined functions corresponding to the respective sequences of actuations of exposed ones of the keys, which are concealable by the extending portion, for a range of positions of the extending portion, wherein the plurality of keys include a first group of alphanumeric keys and a second group of control keys, and wherein the processor is operable to perform the predetermined function corresponding to at least one of the control keys for all positions of the extending portion including when the at least one control key is concealed by the extending portion, wherein the processor is operable to place the handset in an off-hook condition in response to the movement of the extending portion from the first position regardless of whether or not the extending portion has been moved to the second position.
- 12. A radio handset comprising a housing having a key pad including a plurality of keys mounted on a main body and an extending portion mounted for longitudinal slidable movement between a first position in which the plurality of keys are concealed and a second position in which the plurality of keys are exposed, and a processor operable to place the handset in an off-hook condition with the extending portion in the first position with all of the plurality of keys concealed by the extending portion, the second position and at least one intermediate position, wherein the plurality of keys include a first group of alphanumeric keys and a second group of control keys including a call start key, and wherein the handset can be placed in the off-hook condition when the extending portion is concealing the call start key, wherein the processor is operable to place the handset in an off-hook condition in response to the movement of the extending portion from the first position regardless of whether or not the extending portion has been moved to the second position.
- 16. A radio handset comprising a housing having a key pad including a plurality of keys mounted on a main body and an extending portion mounted for longitudinal slidable movement between a first position in which the plurality of keys are concealed and a second position in which the plurality of keys are exposed, and a processor operable to perform respective predetermined functions responsive to respective sequences of actuations of the keys and operable to place the handset in an off-hook condition in response to the movement of the extending portion from the first position, the processor being operable to perform the predetermined functions corresponding to the respective sequences of actuations of exposed ones of the keys for a range of positions of the extending portion, the extent of exposure of the keys being dependent upon the extent of movement of the extending portion between the first position and the second position, the off-hook condition being activatable without pressing one of the keys by movement of the extending portion from the first position, wherein the processor is operable to place the handset in the off-hook condition in response to the movement of the extending portion from the first position regardless of whether or not the extending portion has been moved to the second position.
- 18. A radio handset comprising a housing having a key pad including a plurality of keys mounted on a main body and an extending portion mounted for longitudinal slideable movement between a first position in which the plurality of keys are concealed and a second position in which the plurality of keys are exposed, and a processor operable to perform respective predetermined functions responsive to respective sequences of actuations of the keys and operable to place the handset in an on-hook condition in response to the movement of the extending portion into the first position, the processor being operable to perform the predetermined functions corresponding to the respective sequences of actuations of exposed ones of the keys for a range of positions of the extending portion, the extent of exposure of the keys being dependent upon the extent of movement of the extending portion between the first position and the second position, the on-hook condition being activatable without pressing one of the keys by movement of the extending portion into the first position, wherein the processor is operable to place the handset in an off-hook condition in response to the movement of the extending portion from the first position regardless of whether or not the extending portion has been moved to the second position.
- 20. A radio handset comprising a housing having a key pad including a plurality of keys mounted on a main body and an extending portion mounted for longitudinal slidable movement between a first position in which the plurality of keys are concealed and a second position in which the plurality of keys are exposed, and a processor operable to perform respective predetermined functions responsive to respective sequences of actuations of the keys and operable to place the handset in an off-hook condition in response to the movement of the extending portion from the first position, the operability of the processor to perform the respective predetermined functions responsive to the respective sequences of actuations of the keys being independent of the movement of the extending portion, the off-hook condition being activatable without pressing one of the keys by movement of the extending portion from the first position, wherein the processor is operable to place the handset in the off-hook condition in response to the movement of the extending portion from the first position regardless of whether or not the extending portion has been moved to the second position.
- 22. A radio handset comprising a housing having a key pad including a plurality of keys mounted on a main body and an extending portion mounted for longitudinal slidable movement between a first position in which the plurality of keys are concealed and a second position in which the plurality of keys are exposed, and a processor operable to perform respective predetermined functions responsive to respective sequences of actuations of the keys and operable to place the handset in an on-hook condition in response to the movement of the extending portion into the first position, the operability of the processor to perform the respective predetermined functions responsive to the respective sequences of actuations of the keys being independent of the movement of the extending portion, the on-hook condition being activatable without pressing one of the keys by movement of the extending portion into the first position, wherein the processor is operable to place the handset in an off-hook condition in response to the movement of the extending portion from the first position regardless of whether or not the extending portion has been moved to the second position.
Specification